RC300-2 TELEMETRY RECEIVER USER S GUIDE

RC300-2 TELEMETRY RECEIVER USER S GUIDE Systems Engineering & Management Company 1430 Vantage Court Vista, California 92081 PROPRIETARY INFORMATION THE INFORMATION CONTAINED IN THIS DOCUMENT CONSTITUTES PROPRIETARY INFORMATION AND INTELLECTUAL PROPERTY OF SYSTEMS ENGINEERING & MANAGEMENT COMPANY (SEMCO). ACCORDINGLY, THE USER(S) OF THIS INFORMATION AGREE(S) TO PROTECT THIS INFORMATION TO THE EXTENT THAT THEY WILL PREVENT OTHERS FROM COPYING AND/OR REPRODUCING THIS INFORMATION, EITHER IN WHOLE OR IN PART, OR MANUFACTURE, PRODUCE, SELL OR LEASE ANY PRODUCT COPIED FROM OR ESSENTIALLY REPRODUCED FROM THE INFORMATION CONTAINED IN THIS DOCUMENT WITHOUT THE EXPRESSED WRITTEN APPROVAL OF SYSTEMS ENGINEERING & MANAGEMENT COMPANY. DISTRIBUTION STATEMENT DISTRIBUTION OF THIS DOCUMENT IS AUTHORIZED TO U.S. GOVERNMENT AGENCIES, THEIR CONTRACTORS, AND INTERNATIONAL USERS WHO HAVE PURCHASED SEMCO S RC300-2 TELEMETRY RECEIVERS UNDER U.S. EXPORT RULES AND REGULATIONS. THIS PUBLICATION IS PROVIDED AND REQUIRED SOLELY FOR THE USE AND OPERATION OF THE RC300-2 TELEMETRY RECEIVER. OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED DIRECTLY TO SYSTEMS ENGINEERING AND MANGEMENT COMPANY A2536-003/01 August 2017 SEMCO Proprietary Information

SAFETY SUMMARY System Weight and Handling Restrictions - Depending upon the specific system and configuration, each chassis weighs approximately 50 lbs. (23 kg). Accordingly, take care in the lifting and installation of each chassis. When lifting the chassis, always lift from the bottom of the main chassis frame. Electrical The RC300-2 Telemetry Receiver is designed to operate on 115/230 VAC 50/60 Hz, and comply with all U.S. and International safety codes and regulations required for safe operation and use of commercial equipment. Use standard and accepted safety practices with respect to operating commercial electrical equipment at all times to avoid the risk of personal injury or death. EMI/EMC The RC300-2 Telemetry Receiver complies with all FCC and CE regulations regarding electromagnetic interference and compatibility. There are no personnel hazards or safety issues with respect to EMI/EMC when operating the systems. Exposures to Radio Frequency (RF) Signals The RC300-2 Telemetry Receiver is designed to receive RF signals from 70 MHz to 5250 MHz at levels of +10 dbm to threshold. These signal levels are well below the minimum safe exposure levels prescribed by both U.S. and International standards. A2536-003/01 August 2017 SEMCO Proprietary Information

LIST OF EFFECTIVE PAGES Page Change Date Page Change Date All Initial Release 09/01/2016 All A2536-002 01/01/2017 All A2536-003 08/01/2017 A2536-003/01 August 2017 SEMCO Proprietary Information

TABLE OF CONTENTS SECTION TITLE PAGE SECTION 1 INTRODUCTION 1.1 Scope 1-1 1.2 Purpose and Description 1-1 SECTION 2 GETTING STARTED 2.1 Receiver Description 2-1 2.2 Receiver Hardware Installation 2-2 2.2.1 Dual Redundant Power Supplies 2-3 2.3 Receiver Software 2-3 2.3.1 Boot Procedures and Shutdown 2-3 2.3.2 Navigating the Touch Screens 2-5 2.3.2.1 Main Receiver Status Touch Screen 2-5 2.3.2.2 Main Receiver Status Shortcut Menu Screen 2-6 2.3.2.3 Keyboard Touch Screen 2-6 2.3.2.4 Keyboard Touch Screen Options Menu 2-8 2.3.2.5 Keyboard Touch Screen Slaving Feature 2-8 2.3.2.6 Keyboard Scopes Feature 2-8 2.3.2.7 Keyboard Spectrum Display Feature 2-9 2.3.2.8 Keyboard Main Menu Button 2-10 2.3.3 Navigating the Local GUI 2-10 SECTION 3 HARDWARE I/O 3.1 Hardware Telemetry I/O 3-1 3.1.1 RF Tuner Hardware 3-2 3.1.2 Diversity Combiner Hardware 3-2 3.1.3 IF Receiver/Demodulator Hardware 3-3 3.1.4 Stand-Alone Multi-Channel Bit Synchronizer/Frame Synchronizer/BERT Hardware Option 3-4 3.1.5 Built-In-Self-Test (BIST) Hardware Option 3-4 3.1.6 TM over I/P Hardware Option 3-4 3.1.7 Pre-d Record and Playback Option 3-4 3.1.8 Additional RC300-2 Hardware 3-4 SECTION 4 TELEMETRY RF RECEIVER OPERATION 4.1 RF Frequency Settings 4-1 4.1.1 RF Frequency Settings Using the Touch Screens 4-1 4.1.1.1 RF Synthesizer and 10 MHz Reference Indicators 4-2 4.1.2 RF Frequency Settings Using the GUI 4-2 4.2 Receiver Signal Strength Indicator (RSSI) 4-3 4.2.1 Touch Screen Absolute RSSI Display 4-3 4.2.2 Touch Screen Relative RSSI Display 4-3 4.2.3 Touch Screen Antenna Signal Strength Display 4-4 4.2.4 GUI RSSI Displays and Settings 4-5 4.3 10 MHz Reference Settings 4-6 4.4 IF Filter Bandwidth Selection and Control 4-6 4.4.1 GUI IF SAW Filter 4-7 4.4.2 GUI IF FIR Filter Selection 4-7 A2536-003/01 August 2017 i SEMCO Proprietary Information

TABLE OF CONTENTS (cont.) SECTION TITLE PAGE 4.4.3 Touchscreen IF SAW Filter Selection 4-8 4.4.4 Touchscreen IF FIR Filter Selection 4-8 4.5 Amplitude Modulation Settings 4-9 4.5.1 GUI AM Settings 4-9 4.5.2 Touch Screen AM Settings 4-9 4.6 AGC Settings 4-11 4.6.1 AGC Slope and Polarity 4-11 4.6.2 AGC Output Impedance 4-12 4.6.3 AGC Zero 4-13 4.6.4 AGC Time Constant Selection 4-15 4.6.5 AGC Gain Modes 4-16 4.6.5.1 AGC Mode 4-16 4.6.5.2 AGC Freeze Mode 4-16 4.6.5.3 AGC Manual 4-19 4.7 Automatic Frequency Control (AFC) 4-20 4.8 Pre-d Record and Playback 4-22 SECTION 5 DIVERSITY COMBINER OPERATION 5.1 Diversity Combiner Displays and Controls 5-1 5.1.1 GUI Output Mode 5-2 5.1.2 Touch Screen Output Mode 5-3 5.1.3 GUI Combiner Status Window 5-3 5.1.4 Touch Screen Combiner Status Indicators 5-4 5.1.5 Combiner Best Source Select (BSS) 5-4 5.1.6 Combiner Zero Function 5-5 5.1.7 Combiner AGC Slope and Polarity 5-6 5.1.8 AGC Output Impedance Selection 5-7 5.1.9 AGC Zero 5-8 5.2 Post-d Combiner Setup 5-9 SECTION 6 DEMODULATOR AND BIT SYNCHRONIZER OPERATION 6.1 Demodulator and Bit Synchronizer Controls and Displays 6-1 6.2 Demodulator Settings 6-3 6.2.1 Demodulator Mode Selection 6-3 6.2.2 Demodulator Data Rate Entry 6-4 6.2.3 Demodulator Input Source 6-5 6.2.4 Demodulator Output Modes 6-5 6.2.5 Analog Baseband Video Bandwidth and Gain Controls 6-8 6.2.6 Embedded Bit Synchronizer De-randomizer 6-10 6.2.7 Auto Demodulator Settings 6-11 6.2.8 Additional Advanced Demodulator Settings 6-14 6.2.8.1 Fast Acquire 6-15 6.2.8.2 Loop Bandwidth Divider 6-16 6.2.8.3 FM Sweep 6-17 6.2.8.4 Low Pass Filter 6-18 6.2.8.5 De-Emphasis 6-18 6.2.8.6 Coupling 6-19 A2536-003/01 August 2017 ii SEMCO Proprietary Information

TABLE OF CONTENTS (cont.) SECTION TITLE PAGE 6.2.8.7 Modulation Indexing 6-20 6.2.8.8 Data Quality Metric (DQM) 6-21 6.2.8.9 Signal Degradation Indicator (SDI) 6-23 6.2.8.10 Adaptive Equalization (AE) 6-25 6.2.8.11 Space Time Coding (STC) 6-26 6.2.8.12 Low Density Parity Check (LDPC) FEC 6-27 6.2.8.13 Viterbi FEC 6-29 6.2.8.14 Turbo Code FEC 6-30 6.2.8.15 I/Q Interleaving 6-30 SECTION 7 MULTI- CHANNEL BIT SYNCHRONIZER/FRAME SYNCHRONIZER AND BERT 7.1 GUI Bit Sync/Frame Sync/BERT Setup and Controls 7-1 7.2 Touch Screen Bit Sync/Frame Sync/BERT Setup and Controls 7-4 SECTION 8 BUILT-IN-SELF-TEST (BIST) 8.1 BIST Control Window Design 8-1 8.2 GUI BIST Setup and Control 8-1 8.3 Touch Screen BIST Setup and Control 8-2 SECTION 9 TM OVER I/P 9.1 Description 9-1 9.1.1 PCM TM over IP 9-1 9.1.2 Chapter 10 TM over IP 9-1 9.2 GUI TM over IP Setup 9-3 9.3 Touch Screen TM over IP Setup 9-3 10 REMOTE NETWORK SOFTWARE 10.1 Initial Remote Network Setup 10-1 10.1.1 Changing a Receiver IP Address 10-3 10.1.2 System Naming Feature 10-3 10.1.3 SLTS Network Design Features 10-4 10.2 Receiver Setup and Operation 10-5 10.2.1 RF Frequency Settings 10-5 10.2.2 Receiver Signal Strength Indicator (RSSI) 10-6 10.2.3 10 MHz Reference Settings 10-7 10.2.4 IF SAW Filter Selection 10-8 10.2.5 IF FIR Filter Selection 10-8 10.2.6 AM Settings 10-9 10.2.7 AGC Slope and Polarity 10-9 10.2.8 AGC Output Impedance 10-10 10.2.9 AGC Zero 10-10 10.2.10 AGC Time Constant Selection 10-11 10.2.11 AGC Gain Mode 10-11 10.2.12 AGC Freeze Mode 10-12 10.2.13 AGC Manual Mode 10-13 10.2.14 Automatic Frequency Control (AFC) 10-13 10.2.15 Pre-d Record and Playback 10-14 A2536-003/01 August 2017 iii SEMCO Proprietary Information

TABLE OF CONTENTS (cont.) SECTION TITLE PAGE 10.3 Diversity Combiner Setup and Operation 10-15 10.3.1 Combiner Output Mode 10-15 10.3.2 Combiner Status Window 10-16 10.3.3 Combiner Best Source Select (BSS) 10-16 10.3.4 Combiner Zero Function 10-17 10.3.5 Combiner AGC Slope and Polarity 10-17 10.3.6 AGC Output Impedance Selection 10-18 10.3.7 AGC Zero 10-18 10.4 Demodulator Modes, Controls and Settings 10-19 10.4.1 Demodulator Mode Selection 10-19 10.4.2 Demodulator Data Rate Entry 10-19 10.4.3 Demodulator Input Source 10-20 10.4.4 Demodulator Output Modes 10-20 10.4.5 Analog Baseband Video Bandwidth and Gain Controls 10-21 10.4.6 Embedded Bit Synchronizer De-randomizer 10-22 10.4.7 Auto Demodulator Settings 10-23 10.4.8 Additional Advanced Demodulator Settings 10-24 10.4.8.1 Fast Acquire 10-25 10.4.8.2 Loop Bandwidth Divider 10-25 10.4.8.3 FM Sweep 10-26 10.4.8.4 Low Pass Filter 10-26 10.4.8.5 De-Emphasis 10-27 10.4.8.6 Coupling 10-27 10.4.8.7 Modulation Indexing 10-28 10.4.8.8 Data Quality Metric (DQM) 10-28 10.4.8.9 Signal Degradation Indicator (SDI) 10-29 10.4.8.10 Adaptive Equalization (AE) 10-30 10.4.8.11 Space Time Coding (STC) 10-30 10.4.8.12 Low Density Parity Check (LDPC) FEC 10-31 10.4.8.13 Viterbi FEC 10-31 10.4.8.14 Turbo Code FEC 10-32 10.4.8.15 I/Q Interleaving 10-32 10.5 Toolbar Features 10-33 10.5.1 Receiver Settings 10-33 10.5.2 System Configuration 10-33 10.5.3 Windows 10-34 10.6 Stand-Alone Bit Sync/Frame Sync/BERT 10-37 10.6.1 Bit Sync/Frame Sync/BERT Setup and Controls 10-37 10.7 TM Over IP Feature 10-40 10.7.1 GUI TM over IP Setup 10-41 10.8 Built-In-Self-Test (BIST) 10-41 10.8.1 BIST Setup and Control 10-42 Appendix A RC300 Specifications Appendix A-1 A2536-003/01 August 2017 iv SEMCO Proprietary Information

ILLUSTRATIONS FIGURE TITLE PAGE 2-1 RC300-2 Dual Channel Receiver Combiner System 2-1 2-2 RC300-2 Initial Power and Communications Connections 2-2 2-3 System Local and Remote Control Connections 2-3 2-4 GUI Auto-Boot and Touch Screen Main Menu Displays 2-4 2-5 Navigating the Main Receiver Status Touch Screen 2-5 2-6 Main Receiver Status Shortcut Menu Screen 2-6 2-7 Main Receiver Status and Keyboard Screens 2-6 2-8 Status and Correlating Keyboard Screens 2-7 2-9 Keyboard Touch Screen Options Menu 2-8 2-10 Keyboard Touch Screen Slaving Feature 2-8 2-11 Keyboard Touch Screen Scopes Feature 2-9 2-12 Spectral Sweep Feature 2-9 2-13 Main Menu Button 2-10 2-14 Main Menu Button 2-10 3-1 RC300-2 Rear Panel Telemetry I/O 3-1 4-1 RF Frequency Selection Using Touch Screens 4-1 4-2 Entering a New RF Frequency 4-2 4-3 Main Menu Health Status indicators 4-2 4-4 Frequency Selection Using GUI 4-3 4-5 Absolute RSSI Touch Screen Displays 4-3 4-6 Relative RSSI Touch Screen Displays 4-4 4-7 Antenna Signal Strength Feature 4-4 4-8 GUI Absolute and Relative Signal Strength Display 4-5 4-9 GUI Antenna Signal Strength Feature 4-5 4-10 10 MHz Reference Selection on the Touch Screen 4-6 4-11 10 MHz Reference Selections on the GUI 4-6 4-12 IF SAW Filter Bandwidth Selection on GUI 4-7 4-13 IF FIR Filter Bandwidth Selection on GUI 4-7 4-14 IF SAW Filter Bandwidth Selection on Touch Screen 4-8 4-15 IF FIR Filter Bandwidth Selection on Touch Screen 4-8 4-16 AM Polarity, Impedance and Low Pass Filter Selection on GUI 4-9 4-17 Touch Screen AM Polarity Selection 4-9 4-18 Touch Screen AM Output Impedance Selection 4-10 4-19 Touch Screen AM Low Pass Filter Selection 4-10 4-20 GUI AGC Slope and Polarity 4-11 4-21 Touch Screen AGC Slope Selection 4-11 4-22 Touch Screen AGC Polarity Selection 4-12 4-23 GUI AGC Output Impedance 4-12 4-24 Touch Screen AGC Output Impedance Selection 4-13 4-25 GUI AGC Zero Feature 4-13 4-26 Touch Screen AGC Zero Feature 4-14 4-27 GUI AGC Time Constant Selection 4-15 4-28 GUI AGC Time Constant Selection 4-15 4-29 GUI AGC Gain Mode Selection 4-16 4-30 GUI AGC Freeze Selection 4-16 4-31 AGC Freeze Feature Using Main Status/ Keyboard Touch Screens 4-17 A2536-003/01 August 2017 v SEMCO Proprietary Information

ILLUSTRATIONS (cont.) FIGURE TITLE PAGE 4-32 AGC Freeze Feature Using CH1/CH2 Status/ Keyboard Touch Screens 4-18 4-33 AGC Freeze Front End Attenuator Function for G/T 4-18 4-34 GUI AGC Manual Selection 4-19 4-35 Touch Screen AGC Manual Selection 4-19 4-36 AFC Feature on GUI 4-20 4-37 AFC MANUAL Selection on GUI 4-20 4-38 AFC Feature on Touch Screens 4-21 4-39 Touch Screen AFC Manual and Frequency Offset Selection 4-21 4-40 Touch Screen AFC Reference Selection 4-22 4-41 GUI Pre-d Tape Output Settings 4-22 4-42 GUI Tape Playback Settings 4-23 4-43 Touch Screen Pre-d Record Frequency Settings 4-23 4-44 Touch Screen Pre-d Record Gain Settings 4-24 4-45 Touch Screen Tape Playback Feature 4-24 4-46 Main Status Display Tape Playback Indication 4-24 5-1 Diversity Combiner GUI Display and Controls 5-2 5-2 Diversity Combiner Touch Screen Display and Controls 5-2 5-3 Diversity Combiner Output Mode Selection on GUI 5-2 5-4 Diversity Combiner Output Mode Selection Using Touch Screens 5-3 5-5 Diversity Combiner Status Display on GUI 5-3 5-6 Diversity Combiner Status Display on Touch Screens 5-4 5-7 Diversity Combiner Best Source Selection on GUI 5-4 5-8 Diversity Combiner Best Source Selection on Touch Screens 5-5 5-9 Combiner Zero Feature on GUI 5-5 5-10 Combiner Zero Feature on Touch Screens 5-6 5-11 Combiner AGC Slope and Polarity Selection on GUI 5-6 5-12 Combiner AGC Polarity Selection on Touch Screens 5-7 5-13 Combiner AGC Slope Selection on Touch Screens 5-7 5-14 Combiner AGC Output Impedance Selection on GUI 5-8 5-15 AGC Output Impedance Selection on Touch Screens 5-8 5-16 Combiner AGC Zero Feature on GUI 5-8 5-17 Combiner AGC Zero Feature on Touch Screens 5-9 5-18 Combiner Post-d Selection on GUI 5-9 5-19 Combiner Post-d Selection on Touch Screens 5-10 6-1 Demodulator GUI Controls and Displays 6-1 6-2 Demodulator and Embedded Bit Sync Controls and Displays on Touch Screens 6-2 6-3 GUI Demodulator Mode Selection 6-3 6-4 Touch Screen Demodulator Mode Selection 6-3 6-5 GUI Data Rate Entry 6-4 6-6 Touch Screen Data Rate Entry 6-4 6-7 GUI Demodulator Input Source Selection 6-5 6-8 Touch Screen Demodulator Input Source Selection 6-5 6-9 GUI Output Mode Selection 6-7 6-10 Touch Screen Output Mode Selection 6-7 6-11 Touch Screen Output Mode Custom Selection 6-8 6-12 GUI Baseband Filter BWs and Gain Controls 6-9 6-13 Touch Screen Baseband Filter BW Control 6-9 A2536-003/01 August 2017 vi SEMCO Proprietary Information

ILLUSTRATIONS (cont.) FIGURE TITLE PAGE 6-14 Touch Screen Baseband Filter Gain Control 6-10 6-15 Embedded Bit Synchronizer De-randomizer Feature on GUI 6-10 6-16 Embedded Bit Synchronizer De-randomizer Feature on Touch Screens 6-11 6-17 AUTO Bandwidth and Sweep Settings on GUI 6-12 6-18 AUTO Bandwidth and Sweep Settings on Touch Screens 6-13 6-19 Bandwidth and Sweep Settings on Touch Screens 6-13 6-20 Fast Acquire Settings on GUI 6-16 6-21 Fast Acquire Settings on Touch Screens 6-16 6-22 Loop BW Divider Settings on GUI 6-16 6-23 Loop BW Divider Settings on Touch Screens 6-17 6-24 FM Sweep Settings on GUI 6-17 6-25 FM Sweep Settings on Touch Screens 6-17 6-26 Low Pass Filter Settings on GUI 6-18 6-27 Low Pass Filter Settings on Touch Screens 6-18 6-28 De-Emphasis Settings on GUI 6-18 6-29 De-Emphasis Settings on Touch Screens 6-19 6-30 AC/DC-Coupled Output Settings on GUI 6-19 6-31 AC/DC-Coupled Output Settings on Touch Screens 6-19 6-32 Modulation Index Settings on GUI 6-20 6-33 Auto Modulation Index Settings on Touch Screens 6-20 6-34 Manual Modulation Index Settings on Touch Screens 6-21 6-35 Encapsulation Structure 6-22 6-36 DQM Settings on GUI 6-22 6-37 Enabling DQM on Touch Screens 6-23 6-38 DQM Frame Size Selection on Touch Screens 6-23 6-39 SDI Internal and External Threshold Counts 6-23 6-40 SDI Threshold Setting as a Function of BER Performance 6-24 6-41 SDI Data Form Display 6-24 6-42 SDI Selection on GUI 6-25 6-43 AE Selection on GUI 6-25 6-44 AE Selection on Touch Screens 6-26 6-45 AE Settings on Touch Screens 6-26 6-46 STC Selection on Touch Screen and GUI 6-27 6-47 STC Selection on Touch Screens 6-27 6-48 STC Settings on Touch Screens 6-27 6-49 LDPC Selection on GUI 6-28 6-50 LDPC Selection on Touch Screens 6-28 6-51 LDPC Block Size Selection on Touch Screens 6-28 6-52 LDPC Code Selection on Touch Screens 6-29 6-53 Viterbi Selection on GUI 6-29 6-54 Viterbi FEC Selection on Touch Screens 6-29 6-55 Turbo Code FEC Selection on GUI 6-30 6-56 Turbo Code FEC Selection on Touch Screens 6-30 6-57 I/Q Interleaving Selection on GUI 6-31 6-58 I/Q Interleaving Selection on Touch Screens 6-31 7-1 Bit Sync/Frame Sync/BERT Window 7-1 7-2 Bit Sync/Frame Sync Setup Window 7-2 A2536-003/01 August 2017 vii SEMCO Proprietary Information

ILLUSTRATIONS (cont.) FIGURE TITLE PAGE 7-3 BERT & Frame Sync Setup Window 7-3 7-4 Touch Screen Bit Sync/Frame Sync/BERT Setup 7-4 8-1 BIST Control Window Design 8-1 8-2 GUI BIST Setup 8-2 8-3 Touch Screen BIST Setup 8-2 9-1 TM over IP Block Diagram 9-1 9-2 Supported Chapter 10 Data Formats 9-2 9-3 General Chapter 3 Packet Structure 9-2 9-4 General Time Packet 9-3 9-5 TM over IP Setup 9-3 9-6 Touch Screen TM over IP Setup 9-4 10-1 Server and RC300-2 Network Connections 10-1 10-2 Server SLTS and Lantronix Desktop Icons 10-1 10-3 SLTS Receiver Status Screen 10-1 10-4 Receiver IP Address Search 10-2 10-5 Entering Receiver IP Address and Name 10-2 10-6 Changing a Receiver IP Address 10-3 10-7 System Naming Feature 10-4 10-8 Frequency Selection 10-5 10-9 Frequency Up/Down Increment Selection 10-6 10-10 Absolute and Relative Signal Strength Display 10-6 10-11 Maximum/Average Signal Strength Indicator 10-6 10-12 Antenna Signal Strength Feature 10-7 10-13 10 MHz Reference Selections 10-7 10-14 IF SAW Filter Bandwidth Selection 10-8 10-15 IF FIR Filter Bandwidth Selection 10-8 10-16 AM Polarity, Impedance and Low Pass Filter Selection 10-9 10-17 AGC Slope and Polarity 10-9 10-18 AGC Output Impedance 10-10 10-19 AGC Zero Feature 10-10 10-20 AGC Time Constant Selection 10-11 10-21 AGC Gain Mode Selection 10-11 10-22 AGC Freeze Selection 10-12 10-23 Attenuator Disable and Auto Static Attenuator 10-12 10-24 AGC Manual Selection 10-13 10-25 AFC Feature 10-13 10-26 AFC MANUAL 10-14 10-27 Pre-d Tape Output Settings 10-14 10-28 Tape Playback Settings 10-15 10-29 Diversity Combiner Output Mode 10-15 10-30 Diversity Combiner Status Display on GUI 10-16 10-31 Diversity Combiner Best Source Selection on GUI 10-16 10-32 Combiner Zero Feature 10-17 10-33 Combiner AGC Slope and Polarity Selection 10-17 10-34 Combiner AGC Output Impedance Selection on GUI 10-18 A2536-003/01 August 2017 viii SEMCO Proprietary Information

ILLUSTRATIONS FIGURE TITLE PAGE 10-35 Combiner AGC Zero Feature on GUI 10-18 10-36 Demodulator Mode Selection 10-19 10-37 Data Rate Entry 10-19 10-38 I and Q Data Rate Entry 10-20 10-39 Demodulator Input Source Selection 10-20 10-40 Output Mode Selection 10-21 10-41 Video FIR Filter Bandwidth Selection 10-21 10-42 Baseband Video Gain Controls 10-22 10-43 Embedded Bit Synchronizer De-randomizer 10-22 10-44 AUTO and Manual Bandwidth and Sweep 10-23 10-45 Fast Acquire 10-25 10-46 Loop BW Divider 10-25 10-47 FM Sweep 10-26 10-48 Low Pass Filter 10-26 10-49 De-Emphasis Settings 10-27 10-50 AC/DC-Coupled Output Settings 10-27 10-51 Modulation Indexing Setup 10-28 10-52 DQM Setup 10-29 10-53 SDI Selection 10-29 10-54 AE Selection 10-30 10-55 STC Selection 10-30 10-56 LDPC Selection 10-31 10-57 Viterbi Selection 10-31 10-58 Turbo Code FEC Selection 10-32 10-59 I/Q Interleaving Selection 10-32 10-60 Slaving Feature 10-33 10-61 System Card Set Selection 10-34 10-62 Bit Sync Selection 10-34 10-63 AGC Data/System Parameters Logging 10-35 10-64 AGC Strip Chart Display 10-35 10-65 Receiver Map Feature 10-36 10-66 Help Feature 10-37 10-67 Bit Sync/Frame Sync/BERT Window 10-37 10-68 Bit Sync/Frame Sync Setup Window 10-38 10-69 BERT & Frame Sync Setup Window 10-39 10-70 TM over IP Setup 10-41 10-71 BIST Control Window Design 10-41 10-72 BIST Setup 10-42 A2536-003/01 August 2017 ix SEMCO Proprietary Information

TABLES TABLE TITLE PAGE 2-1 GUI Controls 2-10 3-1 RC300-2 System I/O 3-1 3-2 Baseband Video Outputs (Factory Default Settings) 3-3 6-1 Demodulator Modes and Features 6-2 6-2 Analog, Video and Mixed Video Output Default Settings 6-6 6-3 LR, DQM and Correlating BEP Values 6-21 10-1 Auto Demodulator Settings 10-23 10-2 Additional Advanced Demodulator Settings 10-24 A2536-003/01 August 2017 x SEMCO Proprietary Information

1.1 Scope SECTION 1 - INTRODUCTION This User s Guide addresses the installation and operation of SEMCO s RC300-2 Telemetry Receiver, which is used for telemetry data reception and antenna tracking functions related to aircraft, missiles and weapon system testing. 1.2 Purpose and Description This User s Guide provides detailed information to allow for installation and operation of the RC300-2 Telemetry Receiver. Section 2, Getting Started briefly describes and lists the standard and optional hardware features of the SEMCO RC300-2 Telemetry Receiver and describes how to install and apply power. Section 2 also walks the user through the features and use of the front panel touch screen displays, menus screens and Graphical User Interface (GUI). Section 3, Hardware I/O and Software Controls describes the RC300 hardware I/O interface and provides instructions for setting up receiver operation and control. The standardized hardware I/O description facilitates installation of the RC300-2 in a typical Telemetry Ground Station. Section 4, Telemetry RF Receiver Operation provides a description and instructions pertaining to RC300-2 set-up, operation and status monitoring of RF Receiver and Antenna Tracking features, including but not limited to RF Tuning and down-conversion, 70 MHz linear IF signal distribution, Signal Strength monitoring, IF Filtering, Automatic Frequency Control (AFC), Amplitude Modulation (AM) and Automatic Gain Control (AGC) features. Section 5, Diversity Combiner Operation provides a description and instructions pertaining to set-up, operation and status monitoring of the RC300-2 Diversity Combiner feature, including but not limited to Combiner modes, Best Source Selection feature, AGC Zero and balancing feature and combiner AM and AGC. Section 6, Multi-Mode Demodulator Operation provides a description and instructions pertaining to set-up, operation and status monitoring of the RC300-2 Demodulator feature, including but not limited to the several demodulator formats and respective set-up parameters, the embedded bit synchronizer and de-randomizer feature, and various additional features such as Adaptive Equalization (AE), Data Quality Metrics (DQM), Space Time Coding (STC), Low Density Parity Check (LDPC), Viterbi Forward Error Correction (FEC) and Turbo FEC. Section 7, Multi-Channel Bit Synchronizer/Frame Synchronizer And BERT provides a description and instructions pertaining to set-up, operation and status monitoring of a multi-channel channel Bit Sync/Frame Sync/BERT option as an addition to the embedded bit syncs and de-randomizers in each of the demodulator channels. This option has user-selectable internal (from each demodulator) and external (from rear panel) input switching, programmable Frame Sync, BERT and PN Generator. Section 8, Built-In-Self-Test (BIST), provides a description and instructions pertaining to set-up, operation and status monitoring of the BIST module as a calibrated embedded RF source (200-1150 MHz 1415 to 2485 MHz and 4400-5250 MHz) with Multi-Mode Modulation and PN data formats that are used in conjunction with an embedded BERT for BER self-test as well as several other receiver performance tests. It is designed to run in the background as well as be used for receiver diagnostic testing. A2536-003/01 August 2017 1-1 SEMCO Proprietary Information

Section 9, TM over IP, provides a description and instructions pertaining to set-up, operation and status monitoring of the embedded receiver TM over IP interface, which supports multiple IRIG standard telemetry data formats, including DMQ/DQE interfaces and user specified custom interfaces. The main user interface is the IRIG formats, which are broken down into two main interfaces: PCM data Interfaces and IRIG Chapter 10 Interfaces. Section 10, System Level Telemetry Software (SLTS) Remote Network Software provides a description and instructions pertaining to installation, set-up and operation of the SLTS Remote Network software. Appendix A provides detailed RC300-2 specifications. A2536-003/01 August 2017 1-2 SEMCO Proprietary Information

SECTION 2 GETTING STARTED 2.1 Receiver Description SEMCO s RC300 (Figure 1-1) is a 3U rack-mount dual channel telemetry receiver combiner system with both local and remote (network) control. The RC300 design provides the most advanced telemetry receiver platform features and performance while eliminating IA compliance issues. In addition to the standard and optional features listed below, the RC300 design incorporates a unique feature that makes the system invulnerable to malicious access or control of its ARM processors. A serial to Ethernet converter with SSH Secure Protocol is used to convert Ethernet TCP/IP packets to RS232 serial data signals and vice versa for bidirectional communication. This design provides for three key advantages. First, acting as a buffer, any scan of the external Ethernet port will not reveal the internal processor connections. Secondly, malicious access or control of the ARM processors is eliminated by insertion of this buffer. This buffer is analogous to a DMZ (demilitarized zone) in a network router. Last, but not least, local control and display functionality is retained. Standard RC300 features include: Figure 2-1 RC300-2 Dual Channel Receiver Combiner System A. Fully IA Compliant Operational Configuration, with buffered ARM Processor design that precludes the ability to externally access the processors. B. Single Band RF Tuning (1415-1585, 1650-1850 or 2185-2485 MHz). C. 8 IF SAW Filters (300 khz to 40 MHz) and 15 selectable IF FIR Filters that are presented to the user as a function of data rate input and demodulator format. An Auto IF SAW and FIR filter feature is also provided. D. 15 Baseband FIR Filters that are presented to the user as a function of data rate input and demodulator format. An Auto IF SAW and FIR filter feature is also provided. E. 3 user-switchable analog and PCM/FM demodulators, each with 4 user-configurable analog and/or digital (clock and data) outputs. F. Embedded Bit Synchronizers with a de-randomizer in each demodulator. G. 2 scalable AGC outputs and 1 AM antenna tracking output per channel (CH1/2 and Combiner). H. Eye Pattern and Constellation displays for each installed demodulator. I. Dual 7 Front Panel Touch Screen controls and status displays. J. Both Local GUI control and remote control via Ethernet. K. A user-switchable 70 MHz Playback feature. A2536-003/01 August 2017 2-1 SEMCO Proprietary Information

Optional RC300 features include: A. Multi-band tuning bands (200-1150 MHz, 1415-2485 MHz and 4400-5250 MHz) B. Multi-channel pre-d recording and playback (75 khz to 15 MHz) C. Multi-Channel spectral sweep displays D. Multi-mode demodulation (PM, BPSK, A/U/QPSK, PM/PSK Subcarrier, FM/FM Sub-carrier, GMSK, Coherent AM, IRIG 106-17 Tier 0 Trellis FM, Tier I SOQPSK-TG and Tier II Multi-h CPM) E. Spread Spectrum (SS-UQPSK, SQPN) demodulation F. Multi-Channel Embedded Stand-Alone Bit Sync/Frame Sync/BERT with selectable internal and external switching G. Built-In-Self-Test (Embedded Modulated RF BIT Source/BERT) H. 3 Channel TM over I/P I. Data Quality Metrics (DQM) for use with external Best Source Selectors J. Adaptive Equalization (AE) K. Low Density Parity Check (LDPC) L. Space Time Coding (STC) M. Viterbi Forward Error Correction N. Selective Turbo Coding 2.2 Receiver Hardware Installation Ensure safe system installation for operation (i.e., secured in the equipment rack or safely positioned on a non-slip work surface that can support the system size and weight). Figure 2-2 illustrates the RC300-2 rear panel I/O with respect to AC power, software communications, display, keyboard and mouse (a metal plate is installed over the HDMI and USB Keyboard/Mouse connections when not used). USB Keyboard/Mouse Power Input TM over IP Ethernet HDMI Video Input Figure 2-2 RC300-2 Initial Power and Communications Connections A2536-003/01 August 2017 2-2 SEMCO Proprietary Information

Figure 2-3 depicts the proper system set-up for receiver operation. Display HDMI Video Keyboard Mouse USB Keyboard USB Mouse RC300-2 Remote PC (Can support multiple remote PC Servers) RJ45 Ethernet AC Power PS1 AC Power PS2 2.2.1 Dual Redundant Power Supplies Figure 2-3 System Local and Remote Control Connections The RC300-2 is designed with dual redundant power supplies. The green POWER light on the front panel will be a steady green when both power supplies are on and functioning, and becomes a flashing green light when the RC300-2 is operating on only one power supply. An audio alarm is also present when this occurs, and a red reset pushbutton is located on the rear panel next to the AC Power Input connection to turn the audio alarm off. 2.3 Receiver Software The RC300-2 uses SEMCO-developed local and Touch Screen software for local Graphical User Interface (GUI) and Touch Screen interface. The System Level Telemetry Software (SLTS) program is used for remote (network) software. The local GUI provides for all user-required control and status monitoring of system operation, with correlating control and status monitoring provided by two 7 frontpanel Touch Screens. The SLTS interface with the RC300-2 embedded Linux ARM processors is designed for local operation using the RC300-2 Dual 7 front panel Touch Screens, a display and keyboard/mouse, and/or remotely controlled via Ethernet. All system functions and set-up controls are by keyboard entry and/or by pull-down menu screens selected and controlled by the mouse/touchpad, or via the Touch Screens. System status is via display indicators (numerical readouts and bar graphs) on both the GUI display and front panel Touch Screens. 2.3.1 Boot Procedures and Shutdown If SLTS and Touch Screen software is already installed, then start the RC300-2 as well as the SLTS program by depressing the red Power button located on the front panel. In approximately 45 seconds, the auto-boot process enables the front panel Touch Screens as well as the GUI display (if connected) as shown in Figure 2-4. Receiver Shut-Down is accomplished by simply pressing the red Power Button on the front panel. A2536-003/01 August 2017 2-3 SEMCO Proprietary Information

Main Receiver Status (Left Touch Screen) Keyboard (Right Touch Screen) GUI Main Menu Display Figure 2-4 GUI Auto-Boot and Touch Screen Main Menu Displays A2536-003/01 August 2017 2-4 SEMCO Proprietary Information

2.3.2 Navigating the Touch Screens The RC300-2 Touch Screens have been designed for user-friendliness and ease of operation. The following illustrations and descriptions facilitate the user s familiarity and use of these Touch Screens. 2.3.2.1 Main Receiver Status Touch Screen Looking at the front panel, the Main Receiver Status Touch Screen is on the left. This Touch Screen displays all receiver settings and status. Swiping this screen from right to left displays CH1, CH2 and Combiner settings, all 3 demodulator settings and the receiver configuration information as shown. Figure 2-5 illustrates the first right-to-left swipe. Subsequent swipes are sequenced as follows: CH1 RF Tuner CH2 RF Tuner Combiner Demodulator 1 Demodulator 2 Demodulator 3 Configuration Swipe Status Screen from right to left to access CH1 RF Tuner Status and Settings Subsequent swipes access CH2, Combiner, each Demodulator and Receiver Configuration information Figure 2-5 Navigating the Main Receiver Status Touch Screen A2536-003/01 August 2017 2-5 SEMCO Proprietary Information

2.3.2.2 Main Receiver Status Shortcut Menu Screen Pressing and holding any Main Receiver Status Screen enables access to the Shortcut Menu Screen as shown in Figure 2-6. Any screen can be directly accessed from the Shortcut Menu Screen by touching the desired box. Close Menu returns the user to the Main Status Screen. 2.3.2.3 Keyboard Touch Screen Figure 2-6 Main Receiver Status Shortcut Menu Screen Figure 2-7 depicts the Main Receiver Status Touch Screen and the corresponding Menu Keyboard Touch Screen. The Keyboard Touch Screen is used for all receiver settings and is organized as 2 rows of buttons under Channel 1, Channel 2 and Combiner. These buttons are the individual main receiver settings for Channel 1, Channel 2 and the Combiner, and touching any button accesses the parameters available for the particular setting selected. When a setting is selected and a parameter changed, the Main Status Screen is updated to reflect the changed setting. Specific CH1, CH2, Combiner, and Demod 1/2/3 status screens are also updated to reflect the changed setting. Figure 2-7 Main Receiver Status and Keyboard Screens When any Status Screen is selected other than Main Status (i.e., CH1, CH2, Combiner, Demod 1, 2 or 3), the Keyboard Screen displays additional settings and only the settings applicable to the particular status screen selected. Figure 2-8 illustrates an example of each Status Display and its corresponding Keyboard Display. The Configuration Screen is also shown, which provides a listing of all specific hardware and software that is installed in each RC300-2. A2536-003/01 August 2017 2-6 SEMCO Proprietary Information

CH1/CH2 Status Display CH1/CH2 Keyboard Combiner Status Display Combiner Keyboard Demodulator 1/2/3 Status Display Demodulator 1/2/3 Keyboard Configuration Display Figure 2-8 Status and Correlating Keyboard Screens A2536-003/01 August 2017 2-7 SEMCO Proprietary Information

2.3.2.4 Keyboard Touch Screen Options Menu The Keyboard Touch Screen Options Menu is circled in red in Figure 2-9. These options include the Load, Save and Delete Presets feature, as well as the 10 MHz Reference button that controls the selection of either the Internal 10 MHz reference or an External 10 MHz reference. These features are further described in detail in Sections 4.0 thru 6.0 of this manual. Figure 2-9 Keyboard Touch Screen Options Menu 2.3.2.5 Keyboard Touch Screen Slaving Feature Figure 2-10 depicts the Keyboard Touch Screen Slaving feature. Touching this blue Slaving button enables the Receiver s Slave Mode, which allows the user to slave receiver settings as follows: A. No Slaving CH1, CH2 and all 3 Demodulator settings are independently set. B. Diversity Slaving CH1, CH2 and all 3 Demodulator settings are slaved to each other. C. Frequency Diversity Slaving All 3 Demodulator settings are slaved to each other, while CH1 and CH2 are independently set. 2.3.2.6 Keyboard Scopes Feature Figure 2-10 Keyboard Touch Screen Slaving Feature Figure 2-11 depicts the Scopes Feature. Touching this green Scopes button enables the Demod 1, Demod 2 and Demod 3 displays as shown in Figure 2-11. Selecting any one of the 3 Demod Off buttons enables the Select Scope Mode Value Screen, where the user can select Eye pattern, Constellation or SDI displays for the selected Demodulator. A2536-003/01 August 2017 2-8 SEMCO Proprietary Information

Figure 2-11 Keyboard Touch Screen Scopes Feature 2.3.2.7 Keyboard Spectrum Display Feature Once the green Scopes button has been enabled, the button is now labeled Spectrum as shown in Figure 2-12, if the spectrum display option is installed. Touching the Spectrum button enables the spectrum displays as shown. Each of these spectrum displays has user-selectable span control in 1 MHz, 5 MHz, 10 MHz, 20 MHz and 40 MHz increments. A grid is also provided to enable a visual indication of Spectrum Center Frequency (CF). Spectral Sweep Display with Span Control Pull-Down menu shown TBD Figure 2-12 Spectral Sweep Feature A2536-003/01 August 2017 2-9 SEMCO Proprietary Information

2.3.2.8 Keyboard Main Menu Button Touching the Main Menu button in the lower right hand corner returns the user to the Main Menu Display (left touch screen) and Main Menu Keyboard (right screen) as shown in Figure 2-13. 2.3.3 Navigating the Local GUI Figure 2-13 Main Menu Button The local GUI is shown in Figure 2-14 (next page). The GUI consists of controls for CH1, CH2 and the Combiner. Controls for the demodulator assigned to each of these 3 channels is located in a window just below CH1, CH2 and Combiner controls. GUI receiver, combiner and demodulator/bit sync controls are listed in Table 2-1. Table 2-1 GUI Controls Receiver Controls Combiner Controls Demodulator Controls Input Frequency Output Mode Demodulator Mode & Data Rate RSSI Absolute, Relative and Antenna Indicator Combiner Receiver Zero Feature Input Source (CH!, CH2, Combiner or External 70 MHz IF Bandwidth (SAWs and FIRs) Best Source Select (BSS) Mode Output Mode (Analog, Digital, Mixed & Custom AM Polarity, Impedance and Low Pass AGC Slope, Polarity and Output Auto Bandwidths, Sweep Range & Sweep Rate Filter Selection Impedance AGC Time Constant AGC Zero De-Randomizer AFC, including AFC Offset (Manual mode) Analog Gain (A and B for I&Q outputs) DQM and AE Advanced Demodulator Settings (as applicable to each demodulator format) Video 0, 1, 2, and 3 Output Modes AC/DC Coupling Loop Bandwidth Divider Analog, Data and Clock Polarity De-Emphasis (NTSC Video) Sweep Range and Rate Interleaving Bit Sync Loop Bandwidth Modulation Index Input Code (NRZ and Bi-Phase Codes) Carrier Loop Bandwidth FM Sweep (Low Data Rate) Fast Acquire Low Pass Filter (NTSC Video) IF Filter Bandwidth DQM Frame Size DQM Frame Word DQM BEP Offset A Toolbar provides for important features. Presets provide the user the ability to save and load receiver set-ups. Controls provides for set-up of pre-d down-conversion and playback, 10 MHz reference selection and receiver channel/demodulator slaving options. Windows provides for selection of SDI, Eye Pattern, Constellation and Spectral Sweep Displays, as well as access to the receiver Channel Naming feature. Help provides information with respect to the Remote Software Version that is installed. All GUI controls are described in detail in Sections 4.0 thru 6.0 of this manual. A2536-003/01 August 2017 2-10 SEMCO Proprietary Information

Figure 2-14 Main Menu Button A2536-003/01 August 2017 2-11 SEMCO Proprietary Information

SECTION 3 HARDWARE I/O 3.1 Hardware Telemetry I/O Figure 3-1 depicts the RC300-2 Rear Panel Telemetry I/O outlined in red. The Reference Designators, connectors and a brief description is provided in Table 3-1. Reference Designator Connector Type Figure 3-1 RC300-2 Rear Panel Telemetry I/O Table 3-1 RC300-2 System I/O Description RECEIVER 1 J1 N Receiver CH1 RF Input; 50 Ohm impedance J2 BNC CH1 AGC B Output; scalable +/-10, 20 or 50 db/v; selectable HI-LO impedance J3 BNC CH1 AM Output; 2.0 Vp-p @ 50% AM; selectable 50 or 75 Ohm impedance J4 BNC CH1 Video 0 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J5 BNC CH1 Video 1 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J6 BNC CH1 Tape Playback; user-selectable 75 khz to 15 MHz; adjustable amplitude J7 BNC CH1 Pre-d Tape Output; user-selectable 75 khz to 15 MHz; adjustable amplitude J8 BNC CH1 AGC A Output; scalable +/-10, 20 or 50 db/v; selectable HI-LO impedance J9 BNC Aux J10 BNC CH1 Video 2 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J11 BNC CH1 Video 3 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance COMBINER and BIT SYNCHRONIZER J12 BNC Bit Sync Data Out J13 BNC Bit Sync Input J14 BNC Combiner AGC B Output; scalable +/-10, 20 or 50 db/v; selectable HI-LO impedance J15 BNC Combiner AM Output; 2.0 Vp-p @ 50% AM; selectable 50 or 75 Ohm impedance J16 BNC Combiner Video 0 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J17 BNC Combiner Video 1 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J18 BNC Bit Sync Clock Out J19 BNC Combiner Pre-d Tape Output; user-selectable 75 khz to 15 MHz; adjustable amplitude J20 BNC Combiner AGC A Output; scalable +/-10, 20 or 50 db/v; selectable HI-LO impedance J21 BNC Combiner Signal Degradation Indicator (SDI) J22 BNC Combiner Video 2 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J23 BNC Combiner Video 3 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance A2536-003/01 August 2017 3-1 SEMCO Proprietary Information

Reference Designator Connector Type Table 3-1 RC300-2 System I/O (continued) Description RECEIVER 2 J24 N Receiver CH2 RF Input; 50 Ohm impedance J25 BNC CH2 AGC B Output; scalable +/-10, 20 or 50 db/v; selectable HI-LO impedance J26 BNC CH2 AM Output; 2.0 Vp-p @ 50% AM; selectable 50 or 75 Ohm impedance J27 BNC CH2 Video 0 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J28 BNC CH2 Video 1 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J29 BNC CH2 Tape Playback; user-selectable 75 khz to 15 MHz; adjustable amplitude J30 BNC CH2 Pre-d Tape Output; user-selectable 75 khz to 15 MHz; adjustable amplitude J31 BNC CH2 AGC A Output; scalable +/-10, 20 or 50 db/v; selectable HI-LO impedance J32 BNC Aux J33 BNC CH2 Video 2 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance J34 BNC CH2 Video 3 Baseband Output; 0 to >4 Vp-p; analog/digital; 75 Ohm impedance LINEAR IF OUT J35 BNC CH1 Linear 70 MHz IF Output J36 BNC CH1 Linear 70 MHz IF Output J37 BNC Combiner Linear 70 MHz IF Output J38 BNC Combiner Linear 70 MHz IF Output J39 BNC CH2 Linear 70 MHz IF Output J40 BNC CH2 Linear 70 MHz IF Output 70 MHz Playback J41 BNC Aux 1 J42 BNC Aux 2 J43 BNC Aux 3 10 MHz REFERENCE J44 BNC External 10 MHz Reference Input J45 BNC Internal 10 MHz Reference Output ADDITIONAL I/O J46 D Connector RS422 Demodulator Outputs J47 D Connector Bit Sync, Frame Sync & BERT RS422 I/O J48 D Connector Bit Sync, Frame Sync & BERT CMOS/TTL I/O LAN RJ45 Ethernet TMoIP RJ45 Telemetry Over IP NA USB (2) Keyboard and Mouse Connections for local control NA HDMI Display Connection for local control NA Alarm Reset Reset Button for audible alarm indicating operation on one power supply 3.1.1 RF Tuner Hardware The RF Tuner configuration provides for independent RF channel tuning across 200-1150 MHz, 1415-1585 MHz, 1710-1850 MHz, 2185-2485 MHz and 4400-5250 MHz, as well as providing for an independent AM detector, AGC and AFC circuitry and a filtered, linear 70 MHz IF output that is then distributed as required throughout the receiver. Additional features include: user-selectable AM gain, low pass filtering and output impedance; dual scalable AGC outputs and selectable output impedance; AGC Manual, Freeze and Zero; user-selectable AFC loop speeds, including a Manual and Reference (Coherent) mode; user-selectable Frequency Offset; Absolute, Relative and Antenna Signal Strength displays and AGC voltage displays. 3.1.2 Diversity Combiner Hardware The Diversity Combiner is a pre-d/post-d optimal ratio combiner that processes the modulated CH1 and CH2 70 MHz, AGC and AM and provides up to 3.0 db C/N improvement at equal input signal levels. Combiner features include: Routing of CH1, CH2 or Combined Signal thru the Combiner CH; a Best Source Select Mode, CH1/CH2 AGC balance; AGC Zero feature and Combined AGC voltage displays. A2536-003/01 August 2017 3-2 SEMCO Proprietary Information

3.1.3 IF Receiver/Demodulator Hardware The IF Receiver/Demodulators provide for user-selectable 70 MHz IF filtering using 8 SAW IF filters from 300 khz to 40 MHz and 15 selectable IF FIR filters calculated as a function of data rate and demodulator format. A 70 MHz digital demodulator and embedded bit synchronizer then process the filtered 70 MHz. A de-randomizer feature provides the user with the ability to de-randomize the input signal and output NRZ-L. 15 selectable IF FIR filters calculated as a function of data rate then filter the baseband signal. An AUTO feature is also provided for IF SAW, IF FIR and baseband FIR filter values based on data rate and demodulator format. Table 3-2 lists the factory default baseband video outputs. The user also has the ability to configure Table 3-2 outputs as desired via the Demod Control Panel (GUI and Touch Screen). This feature is described in detail in Section 6 of this User s Guide. Table 3-2 Baseband Video Outputs (Factory Default Settings) Demodulation Format Video 0 Video 1 Video 2 Video 3 ANALOG OUTPUT MODE FM and Trellis FM Data Data Data Data SOQPSK-TG Data Data Data Data Multi-h CPM Data Data Data Data PM Data Data Data Data BPSK Data Data Data Data A\U\QPSK I-Data Q-Data I-Data Q-Data PM/PSK Subcarrier Data Data Data Data FM/FM TBD TBD TBD TBD FM Subcarrier TBD TBD TBD TBD GMSK TBD TBD TBD TBD UQPSK/SQPN Spread Spectrum TBD TBD TBD TBD Coherent AM TBD TBD TBD TBD ANALOG OUTPUT MODE NTSC Video Video Video Video Video DIGITAL OUTPUT MODE FM and Trellis FM Data Clock Data Clock SOQPSK-TG Data Clock Data Clock Multi-h CPM Data Clock Data Clock PM Data Clock Data Clock BPSK Data Clock Data Clock A\U\QPSK I-Data I-Clock Q-Data Q-Clock PM/PSK Sub-Carrier Data Clock Data Clock FM/FM TBD TBD TBD TBD FM Subcarrier TBD TBD TBD TBD GMSK TBD TBD TBD TBD UQPSK/SQPN Spread Spectrum TBD TBD TBD TBD Coherent AM TBD TBD TBD TBD MIXED OUTPUT MODE ANALOG DIGITAL FM and Trellis FM Data Data Data Clock SOQPSK-TG I-Data Q-Data Data Clock Multi-h CPM Data Data Data Clock PM Data Data Data Clock A2536-003/01 August 2017 3-3 SEMCO Proprietary Information

Table 3-2 Baseband Video Outputs (Factory Default Settings) Continued MIXED OUTPUT MODE ANALOG DIGITAL BPSK Data Data Data Clock PM/PSK Sub-Carrier Data Data Data Clock FM/FM TBD TBD TBD TBD FM Subcarrier TBD TBD TBD TBD GMSK TBD TBD TBD TBD UQPSK/SQPN Spread Spectrum TBD TBD TBD TBD Coherent AM TBD TBD TBD TBD 3.1.4 Stand-Alone Multi-Channel Bit Synchronizer/Frame Synchronizer/BERT Hardware Option A three-channel Bit Sync/Frame Sync/BERT option is available in addition to the embedded bit syncs and de-randomizers in each of the demodulator channels. This option has user-selectable internal (from each demodulator) and external (from rear panel) input switching, as well as a programmable Frame Sync and BERT. It can be used as an independent Bit Sync/Frame Sync/BERT or used in conjunction with each channel s demodulator output for TTL and RS422 bit sync/frame sync outputs, as well as BER loop testing of each receiver and combiner channel. 3.1.5 Built-In-Self-Test (BIST) Hardware Option This option provides a calibrated embedded RF source (200-1150 MHz,1415 to 1585 MHz, 1710-1850 MHz, 2185-2485 MHz and 4400-5250 MHz); Multi-Mode Modulation and PN data formats that are used in conjunction with an embedded BERT for BER self-test as well as several other receiver performance tests. It is designed to run in the background as well as be used for receiver diagnostic testing. 3.1.6 TM over I/P Hardware Option This TM over IP hardware option supports multiple IRIG standard telemetry data formats; DMQ/DQE interfaces and user specified custom interfaces (consult the factory). The main interfaces required by users will be the IRIG PCM data Interfaces and IRIG Chapter 10 Interfaces. The embedded TM over IP hardware accepts data and clock signals from the three receiver demodulators. A dedicated Ethernet output connection is provided on the receiver rear panel for the TM over IP connection and auto detects at 10, 100 or 1000 Mbps. Operation can be over a UDP or TCP connection. 3.1.7 Pre-d Record and Playback Option This option provides the ability to down-convert the pre-d 70 MHz IF signal from 75 khz to 15 MHz for recording purposes, and then play back this recorded signal through CH1 and/or CH2. 3.1.8 Additional RC300-2 Hardware Additional RC300-2 hardware includes three Linux ARM processors (one per Touch Screen and one for local GUI capability); one multi-port Ethernet-to-Serial/USB adapter; one 10 MHz reference oscillator; a communications and measurement assembly and a multi-channel spectral sweep assembly. A2536-003/01 August 2017 3-4 SEMCO Proprietary Information

SECTION 4 TELEMETRY RF RECEIVER OPERATION This section provides a description and instructions for set-up, operation and status monitoring of the RF Receiver portion of the RC300-2 Telemetry System, including but not limited to RF Tuning and downconversion, 70 MHz linear IF signal distribution, Signal Strength monitoring, IF Filtering, Automatic Frequency Control (AFC), Amplitude Modulation (AM) and Automatic Gain Control (AGC) features. RCMS program GUI and Touch Screen controls that are applicable to these features and settings are described in subsequent paragraphs. 4.1 RF Frequency Settings 4.1.1 RF Frequency Settings Using the Touch Screens RF Frequency can be selected either from the Main Menu Keyboard display, or from the CH1/CH2 RF Tuner Menu Keyboard display, by touching the RF Frequency buttons circled in red (Figure 4-1). Main Status Display Main Menu Keyboard CH1 Status Display CH1 RF Tuner Menu Keyboard Figure 4-1 RF Frequency Selection Using Touch Screens Figure 4-2 shows the keyboard display after the RF Frequency button is touched, showing the current frequency that has been entered as well as the valid frequency ranges installed in the receiver. The user enters a new frequency (e.g. 2250.5 and then touches the green MHz button in the lower right corner). The Back Space and CE/Cancel buttons are self-explanatory. A2536-003/01 August 2017 4-1 SEMCO Proprietary Information

The frequency can also be changed in steps. Touching the blue Step button provides for step selection of 0.1, 1, 10 or 100 MHz. Once the desired step value is selected than the user can change the frequency in steps by touching the green Step Up or Step Down buttons. Figure 4-2 Entering a New RF Frequency 4.1.1.1 RF Synthesizer and 10 MHz Reference Indicators As depicted in Figure 4-3, the Main Status Display provides RF Tuner status (OK, CH1 Tuner Lock, CH2 Tuner Lock and a green Internal/External 10 MHz Ref) indicating that the RF Tuners are operating properly and the receiver channels are tuned to the frequency of interest. This Main Status Display will provide RF Tuner status (Warning, CH1 Tuner Unlock, CH2 Tuner Unlock, and a blue Internal/External 10 MHz Ref indication if there is an RF Tuner malfunction or the proper 10 MHz reference source is not selected. The Synth Lock on the RF Tuner status display is also GREEN when the receiver channel is tuned to the frequency entered, and RED when the receiver channel is not tuned. \ 4.1.2 RF Frequency Settings Using the GUI Figure 4-3 Main Menu Health Status indicators Figure 4-4 shows the RC300-2 GUI. The user clicks on the Input Freq (MHz) box circled in red, erases the frequency in the box using the backspace key, types in the new frequency and hits Enter. The frequency box will turn blue momentarily and then white, indicating that the new frequency has been accepted and is tuned. The up-down ( ) arrows to the right of the frequency box are used to step the frequency in 0.1 MHz increments. A2536-003/01 August 2017 4-2 SEMCO Proprietary Information

The SYNTH window to the right of the Frequency box is GREEN when the receiver is capable of tuning to different frequencies. The SYNTH window to the right of the Frequency box is RED when either the 10 MHz reference is not functioning properly (including the proper Internal/External selection) or there is an RF Tuner malfunction. The user is not able to select a frequency when this situation occurs. Frequency is selected by typing in the frequency or using the up/down arrow keys to step the frequency in.1 MHz increments 4.2 Receiver Signal Strength Indicator (RSSI) 4.2.1 Touch Screen Absolute RSSI Display Figure 4-4 Frequency Selection Using GUI Figure 4-5 depicts both the Main Status and CH1 RF Tuner Status RSSI Displays. This RSSI is the Absolute Signal Strength in dbm that is detected at the receiver rear panel RF Input. 4.2.2 Touch Screen Relative RSSI Display Figure 4-5 Absolute RSSI Touch Screen Displays When AGC Zero is enabled, the signal strength display switches to Relative Signal Strength (Figure 4-6), reading 0 db at the input signal level that was present when AGC Zero was enabled. Pressing the AGC Zero button on the Keyboard Touch Screen enables the Relative Signal Strength feature. The keyboard button turns green, a green AGC Zero ON is displayed, and the Signal Strength indicator will switch to Relative as shown in Figure 4-6. A2536-003/01 August 2017 4-3 SEMCO Proprietary Information

Figure 4-6 Relative RSSI Touch Screen Displays 4.2.3 Touch Screen Antenna Signal Strength Display The Antenna Signal Strength feature (Figure 4-7) provides an indication of signal strength at the antenna based on a user-specified known Correction Factor (Antenna CF) that is the insertion loss/gain between the antenna and the receiver. The user enables this feature by first touching the Antenna CF Enable button, which will turn green. The Signal Strength indicator will switch to Antenna and the RF Tuner Status Display will indicate Signal Strength Antenna as shown in Figure 4-7. Touching Antenna CF enables a keypad to enter a numerical +/- correction factor. The Main Status Display RSSI and the RF Tuner Status Display will indicate the signal strength at the antenna by adding/subtracting the CF entered. This Correction Factor value (Antenna CF) will also appear on the RF Tuner Status Display as shown in Figure 4-7. Figure 4-7 Antenna Signal Strength Feature A2536-003/01 August 2017 4-4 SEMCO Proprietary Information

4.2.4 GUI RSSI Displays and Settings The GUI RSSI display (Figure 4-8) is a sliding bar graph labeled (Absolute) Signal Strength Indicator. The readout is in dbm, indicating the absolute signal strength at the receiver RF input. When AGC Zero is enabled, the signal strength display switches to (Relative) Signal Strength Indicator, now reading 0 db at the input signal level that was present when AGC Zero was enabled, and reading +/- db relative to that input signal level. AGC Zero is ON is when enabled. The Absolute Signal Strength Indicator indicates the signal strength in dbm at the receiver RF input The Relative Signal Strength Indicator sets a 0 dbm reference Readout by when AGC Zero is enabled Figure 4-8 GUI Absolute and Relative Signal Strength Display The GUI Antenna Signal Strength feature (figure 4-9) provides an indication of signal strength at the antenna based on a user-specified correction factor (CF). Step 1: Click the small box under Antenna CF. Signal Strength Indicator is displayed. Step 2: Enter a numerical +/- correction factor desired in the larger box under Antenna CF and verify that the bar graph dbm readout reflects the +/- change entered as the Antenna CF. The Antenna Signal Strength Indicator takes into account the known signal loss/gain (Antenna CF) between the antenna and receiver, and provides the calculated RF signal strength at the antenna Antenna CF is the known signal loss/gain between the antenna and receiver that is input by the user Figure 4-9 GUI Antenna Signal Strength Feature A2536-003/01 August 2017 4-5 SEMCO Proprietary Information

4.3 10 MHz Reference Settings Touching the 10 MHz Reference button under Options on the Main Keyboard Touch Screen accesses the display shown in Figure 4-10. The user can select an Internal or External 10 MHz reference clock. When External is selected, the receiver uses an external 10 MHz reference connected to the rear panel External 10 MHz BNC connector. Internal selection means that the receiver is using the internal reference. Figure 4-10 10 MHz Reference Selection on the Touch Screen Clicking on the GUI Tool Bar Controls and then 10 MHz Reference allows the user to select either an Internal or External 10 MHz reference as shown in Figure 4-11. 4.4 IF Filter Bandwidth Selection and Control Figure 4-11 10 MHz Reference Selections on the GUI The receiver provides for user-selectable IF SAW and FIR filter bandwidths. Eight IF SAW filters from 300 khz to 40 MHz are provided, as well as fifteen IF FIR filters that are presented to the user as a function of the data rate and demodulator format. This means that a different set of fifteen selectable IF FIR filters are calculated and made available to the user for every data rate entered. An AUTO Select feature is also available as described in the following paragraphs. A2536-003/01 August 2017 4-6 SEMCO Proprietary Information

4.4.1 GUI IF SAW Filter Selection GUI IF Filter selection is depicted in Figure 4-12. The IF SAW filter bandwidth value is a pull-down menu selected by clicking on the arrow ( ) icon to the right of the IF Bandwidth box. IFBW selections range from 300 khz to 40 MHz. In addition to these IFBW value selections, there is also an Auto IF Bandwidth selection. Clicking on AUTO in the pull-down menu enables this feature, which then automatically selects the SAW filter IF Bandwidth value as a function of demodulator mode and data rate. The Auto IF Filter Bandwidth feature will always select the closest SAW IF filter value equal to or greater than the recommended IRIG value for the data rate and demodulation mode selected. IF Bandwidth Pull-Down Menu is used to select desired IFBW 4.4.2 GUI IF FIR Filter Selection Figure 4-12 IF SAW Filter Bandwidth Selection on GUI GUI IF FIR Filter selection is depicted in Figure 4-13. The IF FIR filter bandwidth value is a pull-down menu accessed by clicking on Advanced Settings and then clicking on the arrow ( ) icon to the right of the IF FIR Filter BW window. In addition to the 15 IF FIR filters to choose from, there is also an Auto selection that automatically selects the FIR filter IF Bandwidth value as a function of demodulator mode and data rate. The Auto Bandwidth feature will always select the closest FIR IF filter value equal to or greater than the recommended IRIG value for the data rate and demodulation mode selected. Figure 4-13 IF FIR Filter Bandwidth Selection on GUI A2536-003/01 August 2017 4-7 SEMCO Proprietary Information

4.4.3 Touchscreen IF SAW Filter Selection SAW IFBW selection via the front panel Touch Screens is performed as shown in Figures 4-14. IF SAW filter selection is performed by first touching the IF Filter button (Main Keyboard or CH1/CH2 Keyboard) and then the desired IFBW Value. AUTO selection automatically selects the applicable SAW filter IF Bandwidth value as a function of demodulator mode and data rate. Main Menu Keyboard CH1/CH2 Menu Keyboard 4.4.4 Touchscreen IF FIR Filter Selection Figure 4-14 IF SAW Filter Bandwidth Selection on Touch Screen FIR IFBW selection via the front panel Touch Screens is performed as shown in Figures 4-15. IF FIR filter selection is performed by first touching the FIR Filter button on the Demodulator Keyboard and then the desired FIR Filter Value. AUTO selection automatically selects the applicable FIR filter IF Bandwidth value as a function of demodulator mode and data rate. Figure 4-15 IF FIR Filter Bandwidth Selection on Touch Screen A2536-003/01 August 2017 4-8 SEMCO Proprietary Information

4.5 Amplitude Modulation Settings The RC300-2 AM signal is derived by an analog detector, thus not susceptible to signal latency and the requirement to provide for adjustable delay that is inherent in digital AM demodulation. AM settings include polarity (Normal and Inverted), output impedance (High or Low) and low pass filtering between 30 Hz and 50 khz. Access to these settings on both the GUI and Touch Screens are described in the following paragraphs. 4.5.1 GUI AM Settings AM settings (Positive and Negative for each installed receiver channel) are provided via the GUI pulldown menu as shown in Figure 4-16. The user selects AM Polarity and then clicks on NORM or INV as shown. AM output impedance and low pass filter selection as shown in Figure 4-16. Graphic Not Available At time of User Guide Release AM Polarity AM Output Impedance and Low Pass Filter 4.5.2 Touch Screen AM Settings Figure 4-16 AM Polarity, Impedance and Low Pass Filter Selection on GUI Referring to Figure 4-17, On the CH1/CH2 Keyboard Menu Touch Screen, the user touches the AM Polarity button on the CH1/CH2 Keyboard Menu Touch Screen and the RF Tuner Status Display will toggle between a Normal or Inverted indication under AM Polarity. Figure 4-17 Touch Screen AM Polarity Selection A2536-003/01 August 2017 4-9 SEMCO Proprietary Information

Figure 4-18 depicts Touch Screen selection of AM output impedance. The user touches the AM Impedance button as shown and then selects either High (75 Ohms) or Low (50 Ohms). The AM Impedance indicator on the CH1/CH2 RF Tuner Status Display will toggle between High or Low accordingly. Figure 4-18 Touch Screen AM Output Impedance Selection Figure 4-19 depicts Touch Screen selection of AM low pass filter values. The user touches the AM Filter button as shown and then enters a low pass filter value between 30 Hz and 50 khz. This selected low pass filter value is then displayed below the AM Filter indicator on the CH1/CH2 RF Tuner Status Display. Figure 4-19 Touch Screen AM Low Pass Filter Selection A2536-003/01 August 2017 4-10 SEMCO Proprietary Information

4.6 AGC Settings AGC settings include Slope (10, 20 and 50 db/v), Polarity (+/-), Output Impedance, AGC Zero, AGC Time Constant values and AGC Gain Mode (AGC, Freeze and Manual). Access to these settings on both the GUI and Touch Screens are described in the following paragraphs 4.6.1 AGC Slope and Polarity Figure 4-20 depicts the GUI pull-down windows for AGC POLARITY (POS or NEG) and AGC SLOPE (10, 20 and 50 db/volt). Two AGC outputs per channel (AGC A and AGC B) are available. AGC voltage output levels are displayed on each GUI receiver and combiner control panel. AGC Slope Figure 4-20 GUI AGC Slope and Polarity AGC Polarity Figure 4-21 illustrates AGC A and AGC B Slope selection using the CH1/CH2 Keyboard Touch Screens. Touching A Slope and/or B Slope buttons on the Keyboard enables Slope Value Selection buttons. The selected AGC Slope value is displayed on both the CH1/CH2 Status Displays as shown. Figure 4-21 Touch Screen AGC Slope Selection A2536-003/01 August 2017 4-11 SEMCO Proprietary Information

Figure 4-22 illustrates AGC A and AGC B Polarity selection using the CH1/CH2 Keyboard Touch Screens. Touching A Polarity and/or B Polarity buttons on the Keyboard toggles the CH1/CH2 Status Displays to indicate selected Positive or Negative polarity as shown. 4.6.2 AGC Output Impedance Figure 4-22 Touch Screen AGC Polarity Selection GUI AGC output impedance selection allows the user to select either High or Low. This feature is used for connecting the AGC output to devices with an input impedance of <5K Ohms (Low) or >5K Ohms (High). This feature is illustrated in Figure 4-23. Graphic Not Available At time of User Guide Release Figure 4-23 GUI AGC Output Impedance Figure 4-24 illustrates AGC Output Impedance selection using the Touch screens. Touching A Impedance and/or B Impedance buttons on the Keyboard toggles the CH1/CH2 Status Displays to indicate selected High or Low AGC impedance as shown. A2536-003/01 August 2017 4-12 SEMCO Proprietary Information

Figure 4-24 Touch Screen AGC Output Impedance Selection 4.6.3 AGC Zero AGC Zero zeroes the AGC voltage level at a user-desired signal level (typically the noise floor). This feature is enabled on the GUI by clicking on the window below AGC Zero, which turns ON (Figure 4-25). The (Absolute) Signal Strength indicator changes to (Relative) Signal Strength when AGC Zero is enabled and the readout is 0 db relative to the signal level present when AGC Zero is activated. Because signal noise level will vary as a function of receiver IF filter bandwidth, the AGC Zero feature is used in conjunction with IF filter bandwidth selection during initial receiver set-up or whenever IF filter bandwidth values are changed. A red CARRIER indicator (just left of the (Relative) Signal Strength Indicator is enabled when AGC Zero is enabled, indicating a Signal-to-Noise Ratio (SNR) of < 3 db (i.e., below +3 dbm). A green CARRIER indication occurs with the presence of an in-band RF signal that is 3 dbm or greater than the level where AGC Zero was enabled. Acquisition-of-Signal (AOS) and demodulator lock should normally occur at this level. Any increase or decrease in signal or noise power from the reference point will be reported on the readout display. Red CARRIER indication and 0 db Relative Signal Strength When AGC Zero is enabled Green CARRIER indication with +3 dbm RF Signal Input after AGC Zero is enabled Figure 4-25 GUI AGC Zero Feature A2536-003/01 August 2017 4-13 SEMCO Proprietary Information

Figure 4-26 illustrates the AGC Zero feature using the Main Keyboard and/or the CH1/CH2 Keyboard Touch Screens. Touching the AGC Zero button on any of these keyboards enables AGC Zero, the button turns green and AGC Zero on the Main Menu Display and CH1/CH2 Display indicates ON as shown. The Signal Strength Absolute indicator changes to Signal Strength Relative when AGC Zero is enabled and the readout is 0 db relative to the signal level present when AGC Zero is activated. The Carrier Lock indicator is enabled and RED when AGC Zero is enabled, indicating a Signal-to-Noise Ratio (SNR) of < 3 db (i.e., below +3 dbm). A GREEN Carrier Lock indication occurs with the presence of an in-band RF signal that is 3 dbm or greater than the level where AGC Zero was enabled. Acquisition-of-Signal (AOS) and demodulator lock should normally occur at this level. Any increase or decrease in signal or noise power from the reference point will be reported on the readout display. Red CARRIER LOCK indication and 0 db Relative Signal Strength When AGC Zero is enabled Green CARRIER LOCK indication with +3 dbm RF Signal Input after AGC Zero is enabled Figure 4-26 Touch Screen AGC Zero Feature A2536-003/01 August 2017 4-14 SEMCO Proprietary Information

4.6.4 AGC Time Constant Selection The AGC Time Constant value on the GUI control panel is a pull-down menu selected by clicking on the arrow ( ) icon to the right of the AGC TC box (Figure 4-27). There are five AGC Time Constant values available (0.1, 10, 100 and 1000 ms). Selecting any one of these AGC time constant values will affect the attack and recovery time of the linear 70 MHz IF output, as well as the internal 70 MHz input to the demodulator. It does not affect the attack and recovery time of the demodulated AM output signal. The AM signal output is at a fixed 300 ms AGC time constant that provides optimum AM response for ACU antenna tracking functions, while the ability to select faster AGC time constants optimizes demodulator data quality and BER performance. Figure 4-27 GUI AGC Time Constant Selection Figure 4-28 illustrates AGC Time Constant selection using the Touch screens. Touching the Time Constant buttons on either the Main Keyboard or CH1/CH2 Keyboard enables the Time Constant Value window. The Time Constant value selected is displayed on the CH1/CH2 Status Screen as shown. Figure 4-27 GUI AGC Time Constant Selection Figure 4-28 GUI AGC Time Constant Selection A2536-003/01 August 2017 4-15 SEMCO Proprietary Information

4.6.5 AGC Gain Modes AGC Gain Modes include AGC, AGC Freeze and AGC Manual. Figure 4-29 depicts the GUI AGC Gain Mode pull-down window. 4.6.5.1 AGC Mode In the AGC mode, the AGC is a linear output that tracks with the dynamic range of the receiver (i.e., -10 dbm to Noise Threshold). The AGC mode is the default mode, and should be selected and used for all mission support requirements. Graphic Not Available At time of User Guide Release 4.6.5.2 AGC Freeze Mode Figure 4-29 GUI AGC Gain Mode Selection Figure 4-30 depicts the AGC Freeze feature. The GUI AGC Freeze feature allows the operator to freeze or hold the gain of the selected receiver, and is primarily used to measure signal to noise ratios on the receiver s IF output to perform Antenna G/T measurements. Without AGC Freeze, the receiver would normally amplify incoming signals, including noise; at different gain levels as determined by the selected IF filter bandwidth. Freezing (holding) the receiver gain at a fixed level independent of signal input level allows the operator to measure signal noise floor levels by measuring the IF output at different noise input levels. The AGC Freeze mode should not be used for receiver mission support. AGC Freeze indicates ON when enabled Figure 4-30 GUI AGC Freeze Selection A2536-003/01 August 2017 4-16 SEMCO Proprietary Information

AGC Freeze is used for Antenna G/T measurements, whereby the user measures the antenna gain by pointing the antenna directly at the sun ( Hot Sky ), then away from the sun ( Cold Sky ) and then measuring the IF signal power difference (i.e., antenna G/T). The receiver also has programmable attenuators in the RF Tuner design that ensures front end protection as well as provide for a linear and calibrated dynamic range. However, attenuator operation will sometimes affect the accuracy of antenna G/T measurements at approximately -70 dbm to >-50 dbm noise floor levels. Accordingly, an Attenuator Disable feature precludes this possibility and ensures accurate G/T measurements. In addition to the Attenuator Disable feature, the GUI provides for an Auto Static Attenuator feature. This feature is a microprocessor-controlled function that provides for improved mission performance in high S/N environments. However, this feature does decrease the dynamic range of the receiver and is not recommended for missions with link margins that require the receiver s entire dynamic range. Figure 4-31 shows how to enable AGC Freeze using the Touch Screens. Touching the AGC Gain Mode button on the Main CH1/CH2 Keyboard and then selecting Freeze enables AGC Freeze as shown. The AGC Mode on the Main Menu Display indicates Freeze when AGC Freeze is enabled. Figure 4-31 AGC Freeze Feature Using Main Status/Keyboard Touch Screens Figure 4-32 shows how to enable AGC Freeze on the RF Tuner CH1/CH2 Status Display using the corresponding CH1/CH2 keyboard. The receiver s Front End Attenuators ON/OFF selection for Antenna G/T measurements is shown in Figure 4-33. The graphic showing the Auto Static Attenuator ON/OFF feature was not available at the time this User s Guide was released. Consult the factory for assistance using this feature. CAUTION: The Attenuators must be turned ON (enabled) when resuming normal receiver operations. Failure to do so will impact overall receiver dynamic range and linearity. A2536-003/01 August 2017 4-17 SEMCO Proprietary Information

Figure 4-32 AGC Freeze Feature Using CH1/CH2 Status/Keyboard Touch Screens Figure 4-33 AGC Freeze Front End Attenuator Function for G/T A2536-003/01 August 2017 4-18 SEMCO Proprietary Information

4.6.5.3 AGC Manual Figure 4-34 depicts the AGC Manual feature. The GUI AGC Manual feature allows the user to manually control the AGC output over a limited range. In normal AGC mode, the IF output level of the receiver is approximately -10 dbm. An Automatic Level Control (ALC) circuit keeps this signal level constant and controls this amplitude during input signal amplitude changes. In AGC Manual mode, the auto ALC function is turned off and the output level can be manually controlled. The adjustable range of the output in AGC Manual mode is approximately 0 dbm to -20 dbm, which correlates to a numerical value from 0 to 4095. This mode is for test purposes only and should not be used in mission support scenarios. Graphic Not Available At time of User Guide Release Figure 4-34 GUI AGC Manual Selection Figure 4-35 shows how to enable the AGC Manual Mode using the Touch Screens. Touching the AGC Gain Mode button on the CH1/CH2 Keyboard and then selecting Manual enables AGC Manual as shown. The user selects a number between 0 and 4095, which represents approximately 0 to -20 dbm. A Manual Gain indicator is present on the CH1/CH2 Status Display when AGC Manual is enabled, indicating the selected numerical value. The Main Status Display also indicates Manual AGC Mode. Figure 4-35 Touch Screen AGC Manual Selection A2536-003/01 August 2017 4-19 SEMCO Proprietary Information

4.7 Automatic Frequency Control (AFC) AFC control on the GUI allows the user to select either MANUAL, REFERENCE or 4 AFC Loop Speeds as shown in Figure 4-36. The AFC circuit is locked at approximately +/-200 khz of the incoming RF signal when any one of the four available loop speeds is selected. The Loop Stress frequency readout is GREEN when AFC is locked. Loop Stress is RED when the signal threshold is too low for AFC, or the RF signal is > +/- 200 khz offset from the RF input frequency. AFC Pull-Down Menu is used to select AFC Loop Speeds or MANUAL 100 Hz Loop Speed Selected Figure 4-36 AFC Feature on GUI Selection of AFC MANUAL (Figure 4-37) allows the operator to tune the receiver approximately +/-200 khz from the center frequency selected. When MANUAL is selected, an Offset and slide bar appears. The slide bar can be adjusted for positive or negative frequency offset using the keyboard mouse touchpad (coarse adjust) or keyboard arrow ( ) keys (fine adjust). Selection of AFC REFERENCE coherently locks CH1 and CH2 to the 10 MHz Reference signal. The AFC REFERENCE mode is recommended for optimum Diversity Combiner operation. The AFC MANUAL mode with an Offset indication of 0 khz can also be used in conjunction with a Diversity Combiner. AFC MANUAL selection provides a Frequency Offset Slider control AFC MANUAL Selected with Offset Frequency Slider Figure 4-37 AFC MANUAL Selection on GUI A2536-003/01 August 2017 4-20 SEMCO Proprietary Information

The AFC Feature on the Touch Screens is depicted in Figure 4-38. Touching the AFC button allows the operator to select Manual, Reference or any one of four AFC Loop Speeds. When an AFC Loop Speed is selected, a corresponding AFC Loop Stress indicator is activated in the CH1/CH2 RF Tuner Status display, which provides a +/- 200 khz Loop Stress readout. An AFC LOCK indicator is also activated, which is GREEN when AFC is locked, and RED when unlocked. Auto and the selected Loop Stress value is displayed on the CH1/CH2 Status Screen as shown. Figure 4-38 AFC Feature on Touch Screens Manual selection (Figure 4-39) enables the AFC Manual button and allows the user to tune the receiver approximately +/-200 khz from the RF center frequency. Touching the AFC Manual button provides a numerical keyboard and the user enters the desired offset frequency. The offset entered is displayed on the CH1/CH2 Status Display under AFC. Figure 4-39 Touch Screen AFC Manual and Frequency Offset Selection A2536-003/01 August 2017 4-21 SEMCO Proprietary Information

REF selection is shown in Figure 4-40. Selection of the AFC Reference mode is indicated on the CH1/CH2 Status Display as REF. As previously mentioned, The AFC Reference mode is recommended for optimum Diversity Combiner operation. 4.8 Pre-d Record and Playback Figure 4-40 Touch Screen AFC Reference Selection The Pre-d Record and Tape Playback feature provides the ability to down-convert the pre-d 70 MHz IF for recording purposes, as well a provide for CH1CH2 playback of this recorded signal. The user has the ability to down-convert the 70 MHz IF to a frequency between 75 khz and 15 MHz in 1 khz steps. Controls are also available for adjusting the output level of the down-converted signal as well as the input signal for playback. Figure 4-41 shows how to access and set up the Pre-d down-conversion and output gain using the GUI. The user clicks on Controls in the Toolbar and then Tape, which opens up the Tape window. The user types in and enters the desired down-converted frequency in the Tape Frequency window. Slide bars are available as shown for CH1, CH2 and Combiner Tape Outputs on the rear panel. Figure 4-41 GUI Pre-d Tape Output Settings A2536-003/01 August 2017 4-22 SEMCO Proprietary Information

Figure 4-42 shows how to set up the Tape Playback feature. The user clicks on Playback, which accesses an ON/OFF pull-down menu. When Playback is enabled (ON), the RSSI display is disabled, as well as the ability to tune for an RF input signal is disabled (greyed out) as shown. NOTE: For proper playback operation, the RF input should be disconnected or terminated in 50 ohms. Playback Select Figure 4-42 GUI Tape Playback Settings Playback ON Figure 4-43 shows how to access and enable the Pre-d Record feature using the Touch Screens. Touching the Tape Frequency button on the CH1, CH2 or Combiner Keyboard Screen enables the user to enter the desired tape output frequency. Touching the Tape Gain window allows the user to adjust the amplitude of the Tape Output as shown in Figure 4-44. Figure 4-43 Touch Screen Pre-d Record Frequency Settings A2536-003/01 August 2017 4-23 SEMCO Proprietary Information

Figure 4-44 Touch Screen Pre-d Record Gain Settings Figure 4-45 shows how to enable the Tape Playback feature using the Touch Screens. The user touches the Playback button on the CH1 or CH2 Keyboard Screen, which turns GREEN when enabled. The Playback display on the CH1 or CH2 Status Screen indicates ON and RSSI and Frequency are disabled. RSSI and Frequency are also disabled on the Main Status Display as shown in Figure 4-46. Figure 4-45 Touch Screen Tape Playback Feature Figure 4-46 Main Status Display Tape Playback Indication A2536-003/01 August 2017 4-24 SEMCO Proprietary Information

SECTION 5 - DIVERSITY COMBINER OPERATION The RC300-2 Diversity Combiner is an Optimal Ratio Pre-d and Post-d Combiner that is designed to process both CH1 and CH2 70 MHz IF signals, as well as CH1 and CH2 AGC and AM outputs, and provide up to 3.0 db of C/N improvement at equal signal level inputs. As further described herein, the Combiner also provides several additional features optimizing both receiver and combiner performance. This section provides a description and instructions for set-up, operation and status monitoring of the Diversity Combiner portion of the RC300-2 Telemetry System, including but not limited to Combiner modes, Best Source Selection feature, AGC Zero and balancing feature and combiner AM and AGC. The RC300-2 Diversity Combiner is an Optimal Ratio Pre-d and Post-d Combiner 5.1 Diversity Combiner Displays and Controls The Diversity Combiner GUI and Touch Screen display and controls (Figures 5-1 and 5-2) include: Output Mode - This mode allows the user to select the combiner output mode (CH1, CH2 or Combined). Combiner Status - This display provides a GREEN Locked status, indicating that the Combiner is combining both CH1 and CH2, and a RED Unlocked status when not functioning as a combiner. BSS This mode allows the user to select the Combiner as a Best Source Selector, which then outputs the stronger of CH1 or CH2 RF signals rather than provide a combined output when the PLL is unlocked. Combiner Zero RCV.1 This function allows the user to zero the AGC CH1 input to the combiner, and is used in conjunction with the Combiner Zero RCV.2 function to balance both CH1 and CH2 noise floor levels for optimum combiner performance improvement. Combiner Zero RCV.2 This function allows the user to zero the AGC CH2 input to the combiner, and is used in conjunction with the Combiner Zero RCV.1 function to balance both CH1 and CH2 noise floor levels for optimum combiner performance improvement. AGC Zero This function allows the operator to zero the combiner AGC A and B outputs, and is performed in conjunction with both the CH1 and CH2 AGC Zero function. AGC A Polarity - This function allows the operator to select a positive (POS) AGC A output slope or negative (NEG) AGC A output slope. AGC A Slope This function allows the operator to select the AGC A output scale (10, 20 or 50 db/v). AGC B Polarity - This function allows the operator to select a positive (POS) AGC B output slope or negative (NEG) AGC B output slope. AGC B Slope This function allows the operator to select the AGC B output scale (10, 20 or 50 db/v). Tape Frequency - This feature allows the operator to select a pre-d output frequency for recording purposes from 75 khz to 15 MHz. Tape Gain This feature allows the operator to adjust the amplitude of the pre-d tape output. AGC A and AGC B Output Displays These displays provide a real-time indication of both AGC A and AGC B output voltages. A2536-003/01 August 2017 5-1 SEMCO Proprietary Information

Figure 5-1 Diversity Combiner GUI Display and Controls 5.1.1 GUI Output Mode Figure 5-2 Diversity Combiner Touch Screen Display and Controls The Combiner Output Mode (Figure 5-3) is a pull-down menu that allows the user to force the combiner to a Chan.1, Chan.2 or Combined output. Selecting either Chan.1 or Chan.2 forces the signal from the selected channel through the Combiner Channel s IF Receiver and Demodulator, and the Combiner Channel Video Outputs on the rear panel will be the baseband video outputs of the selected channel. Figure 5-3 Diversity Combiner Output Mode Selection on GUI A2536-003/01 August 2017 5-2 SEMCO Proprietary Information

5.1.2 Touch Screen Output Mode Combiner Output Mode selection using the Touch Screens is shown in Figure 5-4. Touching Combiner Mode on the keyboard and then Chan.1, Chan.2 or Combined from the Select Combiner Mode Value window selects the Combiner Channel s output. The Combiner Lock indicator is GREEN when Combined is selected and RED when either Chan.1 or Chan.2 is selected (Channel 1 has been selected as indicated on the Combiner Status Display in Figure 5-4). Selecting either Chan.1 or Chan.2 forces the signal from the selected channel through the Combiner Channel s IF Receiver and Demodulator, and the Combiner Channel Video Outputs on the rear panel will be the baseband video outputs of the selected channel. The IF output will also switch to CH1/CH2. Figure 5-4 Diversity Combiner Output Mode Selection Using Touch Screens 5.1.3 GUI Combiner Status Window The Combiner Status window indicates either a Combiner Locked or Unlocked condition (Figure 5-5). A Combiner Locked indication means that the combiner is functioning in its AM/AGC optimal ratiocombining mode, and the CH1/CH2 IF signals have been phase-locked. When the combiner is Unlocked and BSS is not activated, the combiner will still output a "combined" signal. The optimal ratio weighting circuitry will maximally bias the strongest channels in the combiner circuit. When BSS mode is enabled and the combiner is unlocked, it will physically switch the IF output from Combined to CH1 or 2. Figure 5-5 Diversity Combiner Status Display on GUI A2536-003/01 August 2017 5-3 SEMCO Proprietary Information

5.1.4 Touch Screen Combiner Status Indicators The Combiner Status indication on the Main Menu Status Display is either a Combined Locked or Unlocked condition (Figure 5-6). A Combined Locked indication means that the combiner is functioning in its AM/AGC optimal ratio-combining mode. When the combiner is Unlocked and BSS is not activated, the combiner will still output a "combined" signal. The optimal ratio weighting circuitry will maximally bias the strongest channels in the combiner circuit. When BSS mode is enabled and the combiner is unlocked, it will physically switch the IF output from Combined to CH1 or 2. Figure 5-6 also shows the Combiner Status Display, which provides a GREEN Combiner Lock indicator in the Combined mode, and a RED Combiner Lock indicator in Chan.1 or Chan.2 output mode. Combiner Status Indication on Main Menu Status Display Figure 5-6 Diversity Combiner Status Display on Touch Screens 5.1.5 Combiner Best Source Select (BSS) Combiner Status Indication on Combiner Status Display Figure 5-7 depicts the user-selectable Combiner Best Source Selector feature on the GUI. Clicking on the BSS window provides an ON/OFF pull-down menu. When the user clicks ON, the Combiner becomes a Best Source Selector. In BSS mode, the combiner will still output a combined signal when locked but will revert to a best selector mode when unlocked. Figure 5-8 illustrates the Best Source Selection feature via the Touch Screens. Touching the Keyboard Best Source Sel turns both the keyboard button GREEN and the Best Source Sel ON/OFF indicator to ON as shown. Figure 5-7 Diversity Combiner Best Source Selection on GUI A2536-003/01 August 2017 5-4 SEMCO Proprietary Information

5.1.6 Combiner Zero Function Figure 5-8 Diversity Combiner Best Source Selection on Touch Screens The Combiner Zero function, when activated ( ON ) optimizes Combiner performance between CH1 (RCV.1) and CH2 (RCV.2) by zeroing the CH1 and CH2 AGC inputs to the combiner with no signal applied. The user clicks on both the Combiner Zero RCV.1 and Combiner Zero RCV.2 windows to activate this feature (ON), which is typically used to balance the CH1 and CH2 noise floors for optimum combiner and mission performance. This feature using the GUI is shown in Figure 5-9. Figure 5-10 shows the Combiner Zero feature using the Touch Screens. This feature can be activated on either the Main Menu Combiner Keyboard or the Combiner Keyboard. Touching the CH1 Zero and CH2 Zero buttons on either keyboard turns the buttons GREEN as well as the CH1 Zero and CH2 Zero indicators (ON) on both the Main Menu Status and Combiner Status Touch Screens. Figure 5-9 Combiner Zero Feature on GUI A2536-003/01 August 2017 5-5 SEMCO Proprietary Information

5.1.7 Combiner AGC Slope and Polarity Figure 5-10 Combiner Zero Feature on Touch Screens The Combiner AGC Settings allow the user to select the POLARITY and SLOPE of the Combiner s AGC A and B outputs. Each AGC output is scalable (+/-10, 20 and 50 db/volt). Actual AGC voltage output levels are displayed on the GUI combiner control panel as well as on each Touch Screen Display. The AGC GUI readout displays are in Volts and the Touch Screen readout displays are in mv. On the GUI, AGC A Slope and AGC B Slope is selected via pull-down menus as shown in Figure 5-11. AGC A Polarity and AGC B Polarity is also selected via pull-down menus as shown in Figure 5-11. AGC Slope Pull-Down Menu is used to select a 10, 20 or 50 db/volt slope AGC Polarity Pull-Down Menu is used to select a Positive or Negative Polarity Figure 5-11 Combiner AGC Slope and Polarity Selection on GUI A2536-003/01 August 2017 5-6 SEMCO Proprietary Information

On the Touch Screen, Combiner AGC A and AGC B Polarity is selected by touching the appropriate keyboard buttons as shown in Figure 5-12. Touching A Polarity or B Polarity keyboard buttons toggles the Polarity readout (Positive or Negative) on the Combiner Status Display as shown. Pushing AGC A or B Polarity keyboard buttons changes the polarity readout (Positive or Negative) Figure 5-12 Combiner AGC Polarity Selection on Touch Screens Figure 5-13 shows how Combiner AGC Slope values are changed. Touching A Slope and/or B Slope buttons on the Combiner Keyboard enables the Slope Value window as shown. The user selects the desired Combiner AGC Slope value, which is then displayed on the Combiner Status Display as shown. 5.1.8 AGC Output Impedance Selection Figure 5-13 Combiner AGC Slope Selection on Touch Screens Combiner AGC output impedance is selected on the GUI (Figure 5-14) to drive external devices that are <5K Ohms (Low) or >5K Ohms (High). A2536-003/01 August 2017 5-7 SEMCO Proprietary Information

Graphic Not Available At time of User Guide Release Figure 5-14 Combiner AGC Output Impedance Selection on GUI AGC output impedance is selected on the touch screens as shown in Figure 5-15. Touching the A Impedance or B Impedance buttons on the Combiner keyboard toggles the Impedance display High or Low on the Combiner Status Display as shown. Graphic Not Available At time of User Guide Release Graphic Not Available At time of User Guide Release Figure 5-15 AGC Output Impedance Selection on Touch Screens 5.1.9 AGC Zero Combiner AGC Zero zeroes the AGC voltage level at a user-desired signal level (typically the noise floor). This feature is enabled on the Combiner GUI by clicking on the window below AGC Zero, which turns ON (Figure 5-16). Figure 5-16 Combiner AGC Zero Feature on GUI A2536-003/01 August 2017 5-8 SEMCO Proprietary Information

Figure 5-17 shows how Combiner AGC Zero is enabled using the Touch Screens. Touching the AGC Zero button on the keyboard enables AGC Zero. The keyboard button turns GREEN and the Combiner AGC Zero Status Display is ON when activated. 5.2 Post-d Combiner Setup Figure 5-17 Combiner AGC Zero Feature on Touch Screens The function of the RC300 Post-d Combiner feature is to provide an improved baseband video output signal resulting from the combining the two baseband video signals from Channel 1 and Channel 2. Combined Signal-to-Noise improvement is done at a ratio squared rate, and Channel 1/Channel 2 signals that are unequal by >10 db are combined at a ratio of the fourth power. The AGC and AM voltages control these combining rates and magnitudes. The resulting combined baseband video signal from the Post-d Combiner is the Post-d Combined Video Output signal that is routed to the receiver s rear panel. Figure 5-18 shows Post-d Combiner selection using the GUI. The user clicks on Output Mode and then Post-d. Graphic Not Available At time of User Guide Release Figure 5-18 Combiner Post-d Selection on GUI Figure 5-19 shows Post-d Combiner selection using the Touch Screens. The user touches the Combiner Mode button on the Combiner Keyboard Screen and then selects Post-d. The Combiner Mode indicator on the Combiner Status Screen indicates Post-d as shown. A2536-003/01 August 2017 5-9 SEMCO Proprietary Information

Graphic Not Available At time of User Guide Release Graphic Not Available At time of User Guide Release Graphic Not Available At time of User Guide Release Figure 5-19 Combiner Post-d Selection on Touch Screens A2536-003/01 August 2017 5-10 SEMCO Proprietary Information

SECTION 6 - DEMODULATOR AND BIT SYNCHRONIZER OPERATION The three RC300-2 Demodulators and embedded Bit Synchronizers are FPGA-based designs that function independently, with the user able to switch (assign) each demodulator and embedded bit synchronizer to CH1, CH2 or the Combiner Channel. These demodulators and embedded bit synchronizers are designed to support all modulation formats used at both U.S. and international flight test ranges, including emerging technologies that embrace Adaptive Equalization (AE), Data Quality Metrics (DQM) for Best Source Selection (BSS), Space Time Coding (STC), Low Density Parity Check (LDPC) and other selected Forward Error Correction (FEC) formats. 6.1 Demodulator and Bit Synchronizer Controls and Displays The GUI controls and displays for all 3 demodulator channels are depicted in Figure 6-1. In this example, Demod 1 is assigned to CH1, Demod 2 is assigned to CH2 and Demod 3 is assigned to the Combiner Channel. These controls and displays allow the user to select all available receiver demodulator modes and settings. Figure 6-1 Demodulator GUI Controls and Displays A2536-003/01 August 2017 6-1 SEMCO Proprietary Information

Figure 6-2 depicts the Modulator and Embedded Bit Sync controls and display. Figure 6-2 Demodulator and Embedded Bit Sync Controls and Displays on Touch Screens The Demodulator and embedded Bit Synchronizer controls and features include basic AUTO and Advanced Settings. Table 6-1 lists selectable Demodulator/Bit Synchronizer controls, settings and features. Each of these controls, settings and features are addressed in subsequent paragraphs. Table 6-1 Demodulator Modes and Features Demodulator Modes PCM/FM, NTSC Video, PM, BPSK, A/U/S/O/QPSK, Tier 0 Trellis FM, Tier I SOQPSK-TG, Tier II Multi-h CPM and PM/PSK and FM/FM Sub-carrier, GMSK, UQPSK/SQPN Spread Spectrum and Coherent AM Demodulator Features FIR filters AUTO-SET feature as a function of data rate input (IFBWs and Baseband Video BWs) 15 selectable IF FIR filters and Baseband FIR filters calculated and presented to the user as a function of data rate Embedded Bit Synchronizer 4 selectable Analog and Digital Outputs with selectable Polarity per channel User-Selectable AC or DC Coupling Custom Video Output Configuration De-Randomizer, Video Low Pass Filtering, Video Polarity and De-Emphasis AUTO loop bandwidth and acquisition sweep settings optimized for demodulator format and data rate User-selectable loop bandwidths, acquisition sweep range and sweep rates with AUTO feature disabled Trellis FM Modulation Index Selection System Degradation Indicator (SDI) Threshold Settings Fast Acquire for fastest acquisition time (Tier 0, I and II), with Track Loop Bandwidth for PM/PSK and SOQPSK-TG FM Low Data (Sweep) Rate (<10 kbps) feature Adaptive Equalization Data Quality Metrics (DQM) and System Degradation Indicator (SDI) SOQPSK Low Density Parity Check (SOQPSK-LDPC) SOQPSK Space Time Coding (SOQPSK-STC) Viterbi and Turbo Forward Error Correction A2536-003/01 August 2017 6-2 SEMCO Proprietary Information

6.2 Demodulator Settings As previously depicted in Figures 6-1 and 6-2, the demodulator modes, controls, settings and features on the GUI Demodulator Control Panel include Demod Mode; Data Rate; Input Source; Analog Gain and Analog BW; Output Mode; Auto; De-rand; DQM; AE; Freq. Offset display; Demod and Bit Sync LOCKED/UNLOCKED indicators; and Advanced Settings. These GUI controls, settings and displays, as well as corresponding Touch Screen controls, settings and displays are described in the following paragraphs. 6.2.1 Demodulator Mode Selection Figure 6-3 depicts the Demodulator Mode Pull-Down Menu on the GUI. Clicking on the arrow ( ) icon to the right of the Demod Mode box provides the ability to select a demodulator format. The individual setup and features of each demodulator mode is described in detail in paragraph 6.3 of this manual. Figure 6-3 GUI Demodulator Mode Selection Figure 6-4 depicts Demodulator Mode selection using the Touch Screens. The demodulator mode can be selected from either the Main Demodulator Keyboard or each individual Demodulator Keyboard by touching the Keyboard Mode button as shown. Figure 6-4 Touch Screen Demodulator Mode Selection A2536-003/01 August 2017 6-3 SEMCO Proprietary Information

6.2.2 Demodulator Data Rate Entry GUI Data Rate entry is shown in Figure 6-5 (GUI). The user clicks on the Data Rate A window, types in the desired data rate and then hits Enter on the keyboard. Figure 6-5 also shows the Data Rate A and Data Rate B window that appears when either AQPSK or AUQPSK demodulator format is selected. This allows the user to type in desired different ( asynchronous ) data rates for the I and Q data streams. Figure 6-5 GUI Data Rate Entry Touch Screen data rate entry is shown in Figure 6-6. Touching the Data Rate A button on CH1, CH2 or Combiner Main Keyboard screen, or on individual Demodulator 1, 2 or 3 screens enables the data rate keyboard as shown. The user enters the data rate and then touches bps, Kbps or Mbps, respectively. Figure 6-6 also shows the disabled Data Rate B buttons, which are enabled for both AQPSK and AUQPSK demodulator formats. Figure 6-6 Touch Screen Data Rate Entry A2536-003/01 August 2017 6-4 SEMCO Proprietary Information

6.2.3 Demodulator Input Source Each demodulator functions independently and can be switched to operate in conjunction with CH1 (RCV.1), CH2 (RCV.2) or the Combiner Channel (CMB.1), as well as be switched to an external 70 MHz input (AUX.1, AUX.2 or AUX.3). Figure 6-7 depicts the Input Source Pull-Down Menu for this selection. Figure 6-7 GUI Demodulator Input Source Selection Figure 6-8 shows how to change the demodulator input source using the touchscreens. The user selects More on the applicable Demodulator Keyboard and then IF Source, which enables the Select IF Source window. The yellow label in the upper left corner of the Demodulator Status Display indicates the input source selection made. 6.2.4 Demodulator Output Modes Figure 6-8 Touch Screen Demodulator Input Source Selection The RC300-2 provides for four baseband video outputs per channel, plus RS422 outputs via a rear panel D connector. Each of the four outputs is user-configurable Analog, Digital, Analog/Digital (Mixed) or Custom formats. Selection of Analog, Digital, Mixed output modes sets the video output configuration of each receiver and combiner channel as listed in Table 6-2. Selection of Custom output mode allows the user to select analog or digital (Clock and Data) outputs on each of the four video outputs. A2536-003/01 August 2017 6-5 SEMCO Proprietary Information

Table 6-2 Analog, Video and Mixed Video Output Default Settings Demodulation Format Video 0 Video 1 Video 2 Video 3 ANALOG OUTPUT MODE FM and Trellis FM Data Data Data Data SOQPSK-TG Data Data Data Data Multi-h CPM Data Data Data Data PM Data Data Data Data BPSK Data Data Data Data A\U\QPSK I-Data Q-Data I-Data Q-Data PM/PSK Subcarrier Data Data Data Data FM/FM TBD TBD TBD TBD FM Subcarrier TBD TBD TBD TBD GMSK TBD TBD TBD TBD UQPSK/SQPN Spread Spectrum TBD TBD TBD TBD Coherent AM TBD TBD TBD TBD NTSC Video Video Video Video Video DIGITAL OUTPUT MODE FM and Trellis FM Data Clock Data Clock SOQPSK-TG Data Clock Data Clock Multi-h CPM Data Clock Data Clock PM Data Clock Data Clock BPSK Data Clock Data Clock A\U\QPSK I-Data I-Clock Q-Data Q-Clock PM/PSK Sub-Carrier Data Clock Data Clock FM/FM TBD TBD TBD TBD FM Subcarrier TBD TBD TBD TBD GMSK TBD TBD TBD TBD UQPSK/SQPN Spread Spectrum TBD TBD TBD TBD Coherent AM TBD TBD TBD TBD MIXED OUTPUT MODE ANALOG DIGITAL FM and Trellis FM Data Data Data Clock SOQPSK-TG I-Data Q-Data Data Clock Multi-h CPM Data Data Data Clock PM Data Data Data Clock BPSK Data Data Data Clock PM/PSK Sub-Carrier Data Data Data Clock FM/FM TBD TBD TBD TBD FM Subcarrier TBD TBD TBD TBD GMSK TBD TBD TBD TBD UQPSK/SQPN Spread Spectrum TBD TBD TBD TBD Coherent AM TBD TBD TBD TBD Figure 6-9 depicts the GUI Output Mode selections. Selection of Analog, Digital or Mixed output modes provide outputs per Table 6-2 above. Custom selection allows the user to configure the 4 video outputs in each demodulator channel. The user selects Custom and then Advanced Settings, and then customizes the video outputs using the Pull-Down Menus associated with Video 0, Video 1, Video 2 and Video 3 as shown. A2536-003/01 August 2017 6-6 SEMCO Proprietary Information

Figure 6-9 GUI Output Mode Selection Figure 6-10 shows how the Demodulator Output Modes are selected using the Touch Screens. Touching the Video Output buttons on either the Main Keyboard Screen or each individual Demodulator Screen enables the Select Video Output Window. The selection is then displayed on the Main Status Display or each individual Demodulator Status Display as shown. Figure 6-10 Touch Screen Output Mode Selection A2536-003/01 August 2017 6-7 SEMCO Proprietary Information

With Custom selection, the user can change each of the video outputs by touching the Video 0, Video 1, Video 2 or Video 3 buttons on the Touch Screen Keyboard and changing each output as shown in Figure 6-11. Figure 6-11 Touch Screen Output Mode Custom Selection 6.2.5 Analog Baseband Video Bandwidth and Gain Controls The RC300A-2 Receiver provides for analog baseband video bandwidth and gain controls. Figure 6-12 shows how to set these controls on the GUI. A. Analog BW A and Analog BW B - Analog A BW is present and, with the AUTO FIR feature enabled, filters are automatically calculated, applied and set as a function of data rate for analog FM, Trellis FM, PM, BPSK, SOQPSK and Multi-h CPM baseband video outputs. With AUTO FIR Filter disabled, 15 selectable FIR Filter values are made available to the user for every data rate selected. Both Analog BW A and Analog BW B are present for QPSK, A/U/QPSK and SOQPSK analog I and Q baseband video outputs. Digital TTL baseband video outputs do not have a GUI display. B. Analog Gain A and Analog Gain B - A Vp-p slide bar is provided on the GUI to adjust the gain of analog base-band video outputs from 0 to >4 Vp-p into 75 ohms (Figure 6-14). These slide bars adjust the gain of the analog base-band video output. The slide bar is in Vp-p gradients and % readout and the receiver s non-volatile memory feature remembers and retains these values. Each slide bar is adjusted by the mouse (coarse adjust) or the keyboard arrow ( ) keys (fine adjust) to set the desired baseband video gain amplitude. The Analog A Gain function applies to FM, Trellis FM, PM, BPSK and Multi-h CPM analog baseband video outputs. Analog A Gain and Analog B Gain are enabled for QPSK, AQPSK, UQPSK, A/U/QPSK and SOQPSK analog I and Q baseband video outputs. Digital TTL baseband outputs do not have gain controls. A2536-003/01 August 2017 6-8 SEMCO Proprietary Information

Graphic for AUTO- MANUAL FIR Filter Feature not available at time of User Guide release Figure 6-12 GUI Baseband Filter BWs and Gain Controls Figure 6-13 shows how to set analog baseband video bandwidth on the Touch Screens. The user selects More on the applicable Demodulator Keyboard and then Video FIR Filter to enable the Select Video FIR Filter window. The video FIR filter value selected is displayed on the Demodulator Status Display as shown. Both Video BW A and Video BW B are enabled for A/U/Q/PSK and SOQPSK demodulator formats. Touching AUTO enables the feature whereby the baseband FIR filter value is automatically calculated as a function of the data rate and demodulator format. Figure 6-13 Touch Screen Baseband Filter BW Control A2536-003/01 August 2017 6-9 SEMCO Proprietary Information

Figure 6-14 shows how to set analog baseband video gain on the Touch Screens. The user selects Video Gain A and/or Video Gain B to enable the Set Video Gain window. The user then uses the slide bar to adjust for the desired video gain output and touches OK. The gain selected is displayed on the Demodulator Status Display as shown. Both Video Gain A and Video Gain B are enabled for A/U/Q/PSK and SOQPSK demodulator formats. Figure 6-14 Touch Screen Baseband Filter Gain Control 6.2.6 Embedded Bit Synchronizer De-randomizer The demodulator s embedded bit synchronizer has a standard IRIG 15-bit de-randomizer feature as shown in Figure 6-15. The user enables the de-randomizer pull-down menu on the GUI by clicking on the De-rand arrow ( ) icon and then ON. The user then clicks on Advanced Settings to access the Input Code pull-down-menu. Input codes include the signal formats as shown in the pull-down menu and, by definition can be enabled for all demodulator formats except SOQPSK and Multi-h CPM. With the De-Randomizer ON, the receiver s baseband outputs are NRZ-L. Figure 6-15 Embedded Bit Synchronizer De-randomizer Feature on GUI A2536-003/01 August 2017 6-10 SEMCO Proprietary Information

Figure 6-16 shows how to select the demodulator s De-Randomizer and Input Codes using the Touch Screens. The user touches the Derandomize button on the Demodulator Keyboard Screen, which turns GREEN when enabled. The user then touches the Input Code button, which accesses the Select Input Code Value window. The selected input code is displayed on the Demodulator Status Display as shown. Figure 6-16 Embedded Bit Synchronizer De-randomizer Feature on Touch Screens 6.2.7 Auto Demodulator Settings Auto Settings are automatically programmed into the demodulator and embedded bit synchronizer when certain demodulation formats are selected. These automatic settings are based on data rates and demodulator characteristics required for optimum performance in most all telemetry missions, and facilitate quick mission set-up without extensive user knowledge and intervention. The Auto settings are available for the following demodulator performance characteristics: A. Bandwidths - This automatically sets the following demodulator bandwidths: (1) Embedded Bit Synchronizer Loop Bandwidth % - Automatically calculates and sets the loop bandwidth value (BW%) of the embedded Bit Synchronizer. Changing this value affects the ability of the Bit Synchronizer to lock on the demodulated waveform. In general terms, a narrower bandwidth provides for a lower lock threshold. A wider bandwidth is more tolerant of waveform anomalies, but will require a higher C/N threshold to lock. The Auto Bandwidths feature automatically calculates and sets an optimum value that provides for a lock threshold that applies to most data rates and demod formats (2) Demodulator (Carrier) Loop Bandwidth% - Normally, the narrowest bandwidth that still provides demodulator lock is most desired, because this provides the lowest C/N lock threshold possible. However, it is sometimes desirable to widen this loop bandwidth value to make the demodulator more tolerant of transmitter jitter and low frequency noise that is found to be present on the telemetry downlink signal. Here again, a wider demodulator loop bandwidth will require a higher C/N threshold to lock. The Auto Bandwidths feature automatically calculates and sets an optimum value that provides for a lock threshold that applies to most data rates and demod formats. A2536-003/01 August 2017 6-11 SEMCO Proprietary Information

B. Sweep Range - This Auto Sweep Range feature automatically calculates and sets an optimum value in khz that provides for a demodulator acquisition time that applies to most data rates and demod formats. A narrow sweep range provides for faster demodulator acquisition and is normally used for higher data rates. A wider sweep range is able to acquire lower data rates, but requires a longer acquisition time to acquire and lock on to the signal. C. Sweep Rate (Hz/S) - This Auto Sweep Rate feature automatically calculates and sets an optimum value in Hz/S that provides for a signal acquisition time that applies to most data rates and demod formats. The sweep rate of the acquisition sweep range in Hz/second affects signal acquisition time. A faster sweep rate results in a faster acquisition time. However, the sweep rate also has to be set at a speed that guarantees reliable signal acquisition without false lock. D. Mod Index This Auto Mod Index feature applies to the Trellis FM demodulation mode. This feature compensates for error in the initial transmitter deviation setting, or change in transmitter deviation during a mission. The display indicates the current average deviation. This feature is able to compensate for a +/- 20% error in the transmitter deviation setting. E. IF FIR Filter Bandwidth This Auto setting calculates the precise IF FIR filter value at the input to the demodulator based on the data rate and demodulation format selected by the user. Disabling the Auto IF FIR Filter setting provides the user with 15 IF FIR filter value selections based on the data rate and demodulation format. This IF FIR Filter menu is updated with the appropriate FIR filter values each time a different data rate and/or demodulator format is selected. F. Video FIR Filter Bandwidth This Auto setting calculates the precise Video FIR filter value at the output to the demodulator based on the data rate and demodulation format selected by the user. Disabling the Auto Video FIR Filter setting provides the user with 15 Video FIR filter value selections based on the data rate and demodulation format. This Video FIR Filter menu is updated with the appropriate FIR filter values each time a different data rate and/or demodulator format is selected. Figure 6-17 shows how to enable and disable the demodulator and embedded bit synchronizer AUTO Bandwidth, Sweep Range and Sweep Rate on the GUI. Clicking on each box under Auto enables the Auto Bandwidth, Sweep Range and Sweep Rate feature. Clearing these boxes and then clicking on Advanced Settings provides the user with the ability to type in values for each of these Bandwidth and Sweep settings. Figure 6-17 AUTO Bandwidth and Sweep Settings on GUI A2536-003/01 August 2017 6-12 SEMCO Proprietary Information

Figure 6-18 shows how to enable the AUTO Bandwidth, Sweep Range and Sweep Rate using the Touch Screens. Touching the Auto Loop BW button on the Demodulator Keyboard Screen enables both the Carrier (Demodulator) Loop Bandwidth (Carrier Loop BW) and the Bit Sync Loop Bandwidth (BS Loop BW). Touching both the Auto Sweep Rate and Auto Sweep Range buttons enables the Auto Sweep functions. All of these buttons turn GREEN when enabled, and the corresponding readouts on the Demodulator Status Screen indicate Auto as shown. Figure 6-18 AUTO Bandwidth and Sweep Settings on Touch Screens Figure 6-19 shows how to disable the AUTO Bandwidth, Sweep Range and Sweep Rate using the Touch Screens. Touching the Auto Loop BW button on the Demodulator Keyboard Screen disables both Carrier (Demodulator) Loop Bandwidth (Carrier Loop BW) and the Bit Sync Loop Bandwidth (BS Loop BW). Touching both the Auto Sweep Range and Auto Sweep Rate buttons disables the Auto Sweep functions. Figure 6-19 also shows how the user accesses the windows where the user can enter values for Carrier Loop Bandwidth (Carrier Loop BW) with a valid input range of 0.01% to 100%, Bit Sync Loop Bandwidth (BS Loop BW) with valid input range of.01% to 100%, Sweep Range of 0 to 500 khz, and Sweep Rate of 0 to 20 MHz/sec Figure 6-19 Bandwidth and Sweep Settings on Touch Screens A2536-003/01 August 2017 6-13 SEMCO Proprietary Information

6.2.8 Additional Advanced Demodulator Settings Advanced Demodulator settings include: A. Fast Acquire Enabling the Fast Acquire feature optimizes the demodulator to acquire the incoming signal as fast as possible. This feature is applicable to FM, Trellis FM and SOQPSK-TG demodulator formats. Selecting this mode may slightly degrade the lock threshold of the selected demodulator mode, but will provide for faster acquisition time and improve Trellis FM lock time to less than 250 average bits and SOQPSK-TG lock time to less than 350 average bits. B. Loop Bandwidth Divider the Loop BW Divider feature is also activated for certain demodulator formats when Fast Acquire is enabled. This feature allows a wider loop for acquisition, and then automatically tightens the loop once lock is declared. The Loop BW Divider value defines how much the Loop Bandwidth is reduced once lock is detected. The selectable values for reducing the bandwidth is 1, 1/2, 1/4 and 1/8, with a value of 1 keeping the Loop Bandwidth the same. This feature is available for all demodulator modes that function with a Loop Bandwidth (PM, BPSK, QPSK, AQPSK, UQPSK, AUQPSK and SOQPSK-TG). C. FM Sweep This feature is used when acquiring FM signals below approximately 20 Kbps. When this feature is enabled, the receiver channel s AFC is enabled and the demodulator s center frequency is swept when demodulating narrow FM signals to ensure that the desired signal is centered in the IF Filter. When narrow FM signals are off frequency, the desired signal may not be in the narrow IF FIR filter and therefore will not be detectable. This setting is used to sweep the frequency offset of the demodulator to give the best possible opportunity to recover the signal. Receiver channel AFC is also automatically enabled for FM data rates below 30 Kbps when Auto is ( ). If Auto is not checked, the user can enable or disable AFC at any selected data rate. D. Low Pass Filter This feature is enabled for optimum reception of NTSC Video, and should always be turned ON whenever NTSC Video format is used. E. De-Emphasis This feature is also used as required when receiving NTSC Video. F. Coupling This setting provides for user-selectable AC or DC-coupled baseband video outputs. G. DQM The Data Quality Metric (DQM) feature provides for support of Best Source Selectors that are used at several Flight Test Ranges. DQM is a means to measure and select data quality from multiple signal sources (antennas). Embedded in the baseband video signal as it is processed by the receiver s demodulator, This DQM data is presented to a Best Source Selector (BSS), which then selects the best signal over time based on a signal quality algorithm. DQM Frame Size, Frame Word, Manual Mean and Bit Error Probability (BEP) Offset are user-selectable DQM parameters. H. SDI - The Signal Degradation Indicator (SDI) is a demodulator output used with external Best Source Selectors. SDI counts are the value of a counter looking at 1000 symbols (at the maximum opening of the eye pattern) and counting the number of times the eye pattern exceeds the external count threshold, or falls to less than the internal count threshold. Internal counts refer to extended threshold measurements of the receive signal inside the eye, while external counts refer to those extended threshold measurements outside the eye. Additional details on this feature are provided in paragraph 6.2.8.8 of this manual. A2536-003/01 August 2017 6-14 SEMCO Proprietary Information

I. LDPC The Low Density Parity Check (LDPC) feature is a Forward Error Correction (FEC) block code, meaning that a block of information bits has parity added to them in order to correct for errors in the information bits. The term low-density stems from the parity check matrix containing mostly 0 s and relatively few 1 s. There are nine different LDPC codes with different coding rates (rate 1/2, 2/3, 4/5) and information block sizes (1024 and 4096). In the trade between transmission channel characteristics, bandwidth efficiency, coding gain, and block size, all three rates and block sizes 1024 and 4096 are applicable. This FEC code is only used with SOQPSK-TG modulation. J. AE - The Adaptive Equalization (AE) feature mitigates RF multi-path that is present at the receiver s input and automatically adapts to time-varying properties of the RF signal. It can be used in FM, PSK and SOQPSK-TG demodulation modes and mitigates the effects of multipath propagation and Doppler spreading. K. STC Space Time Coding (STC) uses space diversity and time diversity to overcome the twoantenna problem, which is characterized by large variances in the antenna gain pattern from a test article caused by transmitting the same telemetry signal time through two transmit antennas. These signals are typically delayed in time and have differing amplitudes. Space-Time-Coding (STC) only applies to SOQPSK-TG modulation. The input bit stream is spacetime coded, resulting in two parallel bit streams that then have a pilot sequence added to each bit stream at fixed bit intervals (or blocks). These encoded/pilot-added streams are then individually modulated through phase-locked transmitters to a carrier using SOQPSK-TG modulation, power amplified and then connected to a top and bottom antenna. The receiver performs the task of estimating frequency offset, delays, gains, and phase shifts, and then space-time decoding the signal in the SOQPSK-STC mode. L. Viterbi and Turbo FEC - Viterbi Forward Error Correction (FEC) is an algorithm used by the demodulator to recover a convolutional encoded signal. This feature is used to compensate for noise in the modulated signal received by the receiver and provides error correction that in most cases results in complete recovery of the original convolutional encoded signal. The rate and K factor available in the receiver is Rate ½ K=7. Turbo FEC applies to situations where data quality can be improved over bandwidth or latencyconstrained communication links in the presence of data-corrupting noise. Provided as a custom application based on customer specifications, Turbo codes provide very similar performance when compared to LDPC FEC. M. I/Q Interleaving - User-selectable interleaving of the analog I and Q baseband video outputs is available for QPSK and UQPSK demodulator formats. The following paragraphs provide additional details and address how to access these additional Advanced Settings using both the GUI and Touchscreen. 6.2.8.1 Fast Acquire Enabling the Fast Acquire feature optimizes the demodulator to acquire the incoming signal as fast as possible. This feature is applicable to FM, Trellis FM and SOQPSK-TG demodulator formats. Figure 6-20 shows how to enable Fast Acquire on the GUI. The user clicks on Advanced Settings and then Fast Acquire to access an ON/OFF pull-down menu as shown. The Fast Acquire feature is available for FM, Trellis FM and SOQPSK-TG demodulator formats. A2536-003/01 August 2017 6-15 SEMCO Proprietary Information

Figure 6-20 Fast Acquire Settings on GUI Figure 6-21 shows how to enable Fast Acquire using the Touch Screens. The user touches the Fast Acquire button on the Demodulator Keyboard Screen, the button turns GREEN and the Fast Acquire indicator on the Demodulator Status Screen is ON as shown. 6.2.8.2 Loop Bandwidth Divider Figure 6-21 Fast Acquire Settings on Touch Screens Figure 6-22 shows how to enable Loop BW Divider on the GUI. The user disables Auto Bandwidths, clicks on Advanced Settings and then the arrow ( ) icon next to Loop BW Divider to access a pulldown menu with value selections for reducing the Carrier Loop Bandwidth during initial signal acquisition. The Loop BW Divider feature is available with Auto disabled for PM, BPSK, A/U/Q/PSK and SOQPSK- TG demodulator formats. Figure 6-22 Loop BW Divider Settings on GUI Figure 6-23 shows how to enable Track Loop BW Divider using the Touch Screens. On the Demodulator Keyboard Screen, the user disables Auto Loop BW by toggling the applicable button from GREEN to Gray and then touching the Track Loop BW Divider button to access the Select Loop BW Divider value screen as shown. The Trk BW indicator on the Demodulator Status Screen displays the selected value. A2536-003/01 August 2017 6-16 SEMCO Proprietary Information

Figure 6-23 Loop BW Divider Settings on Touch Screens 6.2.8.3 FM Sweep Figure 6-24 shows how to enable FM Sweep on the GUI. The user clicks on Advanced Settings and then the arrow ( ) icon next to FM Sweep to access an OFF/ON pull-down menu. The FM Sweep feature is available for optimizing FM-modulated RF signal acquisition at low data rates. Figure 6-24 FM Sweep Settings on GUI Figure 6-25 shows how to enable FM Sweep using the Touch Screens. On the Demodulator Keyboard Screen, the user touches the FM Sweep button, which turns GREEN when enabled. The Trk BW indicator on the Demodulator Status Screen displays the selected value. Graphic Not Available At time of User Guide Release Graphic Not Available At time of User Guide Release Figure 6-25 FM Sweep Settings on Touch Screens A2536-003/01 August 2017 6-17 SEMCO Proprietary Information

6.2.8.4 Low Pass Filter Figure 6-26 shows how to enable Low Pass Filter on the GUI. The user clicks on Advanced Settings and then the arrow ( ) icon next to Low Pass Filter to access an OFF/ON pull-down menu. The Low Pass Filter feature is available with to optimize NTSC Video-modulated RF signal quality and should always be used in conjunction with the FM demodulator format when receiving an NTSC Video signal. Figure 6-26 Low Pass Filter Settings on GUI Figure 6-27 shows how to enable Low Pass Filter using the Touch Screens. On the Demodulator Keyboard Screen, the user touches the Video LP button, which turns GREEN when enabled. The Demodulator Status Screen Video LP indicates ON as shown. 6.2.8.5 De-Emphasis Figure 6-27 Low Pass Filter Settings on Touch Screens Figure 6-28 shows how to enable De-Emphasis on the GUI. The user clicks on Advanced Settings and then the arrow ( ) icon next to De-Emphasis to access an OFF/ON pull-down menu. The De- Emphasis feature is used in conjunction with the FM demodulator format when receiving an NTSC Video signal. Figure 6-28 De-Emphasis Settings on GUI A2536-003/01 August 2017 6-18 SEMCO Proprietary Information

Figure 6-29 shows how to enable De-Emphasis using the Touch Screens. On the Demodulator Keyboard Screen, the user touches the De-Emphasis button, which turns GREEN when enabled. The Demodulator Status Screen De-Emphasis indicates ON as shown. 6.2.8.6 Coupling Figure 6-29 De-Emphasis Settings on Touch Screens Figure 6-30 shows how to enable the Coupling feature on the GUI. The user clicks on Advanced Settings and then the arrow ( ) icon next to Coupling to access an DC/AC pull-down menu. This setting provides for user-selectable AC or DC-coupled baseband video outputs. Figure 6-30 AC/DC-Coupled Output Settings on GUI Figure 6-31 shows how to enable the Video Coupling feature using the Touch Screens. The user touches the Video Coupling button on the Demodulator Keyboard Screen and the Demodulator Status Screen provides an AC or DC Video Coupling indication as shown. Figure 6-31 AC/DC-Coupled Output Settings on Touch Screens A2536-003/01 August 2017 6-19 SEMCO Proprietary Information

6.2.8.7 Modulation Indexing Applicable to the Trellis FM demodulator format, Modulation Indexing provides for signal acquisition and lock when confronted with transmitter deviation that is drifting between +/- 20% of 0.7 modulation index (35% deviation). This equates to deviation drift between 0.6 and 0.8 modulation index. When in Auto, the receiver compensates for this drift. Manual allows the user to enter a fixed value between 0.6 (30% deviation) and 0.8 (40% deviation). Manual Mod Indexing is normally used when the transmitter deviation is a known and fixed value between 0.6 and 0.7. Figure 6-32 shows how to enable Modulation Indexing on the GUI. The user clicks on the Mod Index box under Auto as shown to enable Auto Mod Indexing. Clearing the Auto Mod Index box, clicking on Advanced Settings and then entering a value between 30% and 40% as shown enables Manual Mod Indexing. Figure 6-32 Modulation Index Settings on GUI Figure 6-33 shows how to enable Auto Modulation Indexing using the Touch Screens. The user touches the Mod Index button on the Demodulator Keyboard Screen to access the Mod Index Keypad as shown. Touching Auto enables Auto Mod Index as indicated on the Demodulator Status Screen. Figure 6-33 Auto Modulation Index Settings on Touch Screens A2536-003/01 August 2017 6-20 SEMCO Proprietary Information

Figure 6-34 shows how to enable Manual Mod Indexing on the Touch Screen. Entering a value between 0.3 and 0.4 (30% to 40% deviation) on the Keypad results in a Mod Index indication of this value on the Demodulator Status Screen as shown. 6.2.8.8 Data Quality Metric (DQM) Figure 6-34 Manual Modulation Index Settings on Touch Screens DQM is an estimate of the Bit Error Probability (BEP) of the demodulator s received signal. Data Quality Encapsulation (DQE) enables telemetry receivers to generate a serial data stream that includes a standardized measurement of the real-time probability of error for a grouping of bits. This process provides a standardized method for communicating data quality to Best Source Selectors. DQM is determined over several symbols (Payload), encapsulated into the data stream, and calculated by estimating BEP and computing a Likelihood Ratio (LR), which is then used to represent the data quality. Using the calculated LR, the DQM is then calculated as a 16-bit unsigned integer. Table 6-3 shows the relationship of BEP, LR & DQM. Table 6-3 LR, DQM and Correlating BEP Values A2536-003/01 August 2017 6-21 SEMCO Proprietary Information

Figure 6-35 shows the Encapsulation Structure that is used for DQM. 16 Bits 12 Bits 4 Bits 16 Bits 1024-16384 Bits SYNC PATTERN RSV VER DQM PAYLOAD Figure 6-35 Encapsulation Structure Referring to Figure 6-35, the following definitions are provided: A. SYNC PATTERN A 16-bit word set to 0xFAC4 and is MSB first: 1111101011000100-bit reserve word must be 0. B. RSV Is a 12-bit word that is reserved and is required to be set to all zeros based on the IRIG 106-17 Standard, Chapter 2, Appendix 2-G. C. VER 4-Bit Version Number that is set to 0 to signify compliance with IRIG 106-17. D. DQM The 16-bit calculated Data Quality Metric as defined above. E. PAYLOAD 1024 to 16384 Bits of received data. RC300 DQM setup, as described in subsequent paragraphs, addresses the following parameters: A. Enable Setting this control enables the operation of DQM/DQE. Operation is only valid in PCM/FM, SOQPSK and Multi-h CPM demodulation formats. B. Payload Length (Frame Size) Allows the user to specify the number of received data bits in a DQE frame. The DQM is calculated over these bits. The valid range is 1024 to 16384 bits, and the Frame Size value for a mission using DQM will be known by the user. C. Frame Word A combination of the RSV & VER parameters of the DQE frame, the Frame Word is set as a hexadecimal value. Controls are provided to support any changes in the IRIG Standard and for test purposes. It should always remain set to 0x0000h unless for special testing. Manual Mean and BEP Offset are factory-set values that are locked out in normal DQM operation. Figure 6-36 shows how to enable and set-up DQM on the GUI. The user clicks on the arrow ( ) icon next to DQM, which accesses an ON/OFF pull-down menu. The user then clicks on Advanced Settings to access DQM Frame Size and DQM Frame Word. The values for each of these parameters is then typed in and entered using the keyboard (0 for Frame Word and pre-determined value for Frame Size). Figure 6-36 DQM Settings on GUI A2536-003/01 August 2017 6-22 SEMCO Proprietary Information

Figure 6-37 shows how to enable the DQM feature using the Touch Screens. On the Demodulator Keyboard Screen, the user touches the DQM button, which turns GREEN when enabled. The Demodulator Status Screen DQM indicates ON as shown. Figure 6-37 Enabling DQM on Touch Screens Figure 6-38 shows how to enter a value for DQM Frame Size. Touching the DQM Frame Size button accesses a keyboard and enables DQM Frame Size selection. The user enters a pre-determined frame size value, which is indicated on the Demodulator Status Screen as shown. 6.2.8.9 Signal Degradation Indicator (SDI) Figure 6-38 DQM Frame Size Selection on Touch Screens SDI is a demodulator output used with external Best Source Selectors. SDI counts are the value of a counter looking at 1000 symbols (at maximum opening of the eye pattern) and counting the number of times the eye pattern exceeds the external count threshold, or is less than the internal count threshold (Figure 6-39). Figure 6-39 SDI Internal and External Threshold Counts A2536-003/01 August 2017 6-23 SEMCO Proprietary Information

The Interior and Exterior counts will increase as Bit-Error Rate decreases as shown in the Figure 6-40 data graph of Count vs. Bit-Error Rate. The data graph depicts the factory threshold setting value of 30. Setting the demodulator s minimum Interior Threshold sets the lowest value that the Best Source Selector uses to determine BER degradation. This threshold count is factory set at a value of 30 to produce the lowest BER value (1.00E-07) that the Best Source Selector will use in its decision-making. The user can change this value using the GUI or Touch Screens as described in subsequent paragraphs to change this lowest BER value per the Figure 6-40 data graph. Interior Threshold Figure 6-40 SDI Threshold Setting as a Function of BER Performance Figure 6-41 depicts the SDI Data Form that can be monitored by selecting Windows and then S D I / Eye Pattern/Constellation from the GUI Tool Bar. Disabling the Eye Diagram/Constellation displays enables the SDI Data Form as shown. The SDI Data Form displays Interior Count, Exterior Count, and Receiver Lock, as well as Ip and Ep states. Figure 6-41 SDI Data Form Display A2536-003/01 August 2017 6-24 SEMCO Proprietary Information

Figure 6-42 shows how to enable the SDI feature on the GUI, as well as provide the controls for setting the demodulator s minimum Interior Threshold Count. The user clicks on Windows in the Toolbar, selects SDI/Eye Pattern/Constellation and then either Demod 1, Demod 2 and/or Demod 3. The SDI Threshold Count is factory-set at 30, and the user can then click on Advanced Settings as shown to change this value if desired. Clicking on the arrow ( ) icon in the Eye/Const/SDI window and then selecting SDI enables the SDI Data Form. Advanced Settings Graphic For selectable SDI Threshold Value Not Available At time of User Guide Release 6.2.8.10 Adaptive Equalization (AE) Figure 6-42 SDI Selection on GUI The AE feature mitigates RF multi-path that is present at the receiver s input and automatically adapts to time-varying properties of the RF signal. It can be used in FM, PSK and SOQPSK-TG demodulation modes and mitigates the effects of multipath propagation and Doppler spreading. Figure 6-43 illustrates AE selection using the GUI. The user clicks on AE, which accesses an ON/OFF pull-down menu as shown. The user then clicks on Advanced Settings to access the AE settings. Advanced Settings Graphic For AE settings Not Available At time of User Guide Release Figure 6-43 AE Selection on GUI A2536-003/01 August 2017 6-25 SEMCO Proprietary Information

Figures 6-44 and 6-45 shows how to enable AE using the Touch Screens. The user touches the Equalizer button on the Demodulator Keyboard Screen, which turns GREEN when enabled. The Demodulator Status Screen Equalizer indicates ON as shown. The user then touches the Equalizer Settings button to access a keyboard for entering desired values as shown in Figure 6-45. Figure 6-44 AE Selection on Touch Screens Graphic For AE Touch Screen Settings Not Available At time of User Guide Release Graphic For AE Touch Screen Settings Not Available At time of User Guide Release Graphic For AE Touch Screen Settings Not Available At time of User Guide Release 6.2.8.11 Space Time Coding (STC) Figure 6-45 AE Settings on Touch Screens As previously discussed in paragraph 6.2.8, this code uses space diversity and time diversity to overcome the two-antenna problem, which is characterized by large variances in the antenna gain pattern from a test article caused by transmitting the same telemetry signal time through two transmit antennas. These signals are typically delayed in time and have differing amplitudes. Space-Time-Coding (STC) only applies to SOQPSK-TG modulation. The input bit stream is space-time coded, resulting in two parallel bit streams that then have a pilot sequence added to each bit stream at fixed bit intervals (or blocks). These encoded/pilot-added streams are then individually modulated through phase-locked transmitters to a carrier using SOQPSK-TG modulation, power amplified and then connected to a top and bottom antenna. The job of estimating frequency offset, delays, gains, and phase shifts, and then the receiver in the SOQPSK-STC mode does space-time decoding of the signal. Figure 6-46 illustrates SOQPSK-STC selection on the GUI. The user clicks on the arrow ( ) icon next to STC, which accesses an ON/OFF pull-down menu as shown. The user then clicks on Advanced Settings to access the STC settings as shown. A2536-003/01 August 2017 6-26 SEMCO Proprietary Information

Graphic For GUI STC Advanced Settings Not Available At time of User Guide Release Graphic For GUI STC Selection Not Available At time of User Guide Release Figure 6-46 STC Selection on Touch Screen and GUI Figures 6-47 and 6-48 shows how to enable STC using the Touch Screens. The user touches the STC button on the Demodulator Keyboard Screen, which turns GREEN when enabled. The Demodulator Status Screen STC indicates ON as shown. The user then touches the STC Settings button to access a keyboard for entering desired values as shown in Figure 6-48. Graphic For STC Selection Not Available At time of User Guide Release Graphic For STC Selection Not Available At time of User Guide Release Figure 6-47 STC Selection on Touch Screens Graphic For AE Touch Screen Settings Not Available At time of User Guide Release Graphic For AE Touch Screen Settings Not Available At time of User Guide Release Graphic For AE Touch Screen Settings Not Available At time of User Guide Release Figure 6-48 STC Settings on Touch Screens 6.2.8.12 Low Density Parity Check (LDPC) FEC FEC is a way of adding additional information to a transmitted bit stream in order to decrease the required signal-to-noise ratio to the receiver for a given bit error rate. Low Density Parity Check (LDPC) is a block code, which is a block of information bits with parity added to in order to correct for errors in the information bits. The Low-Density parity check matrix contains mostly 0 s and relatively few 1 s. A2536-003/01 August 2017 6-27 SEMCO Proprietary Information

There are six different LDPC codes with different coding rates (rate 1/2, 2/3, 4/5) and information block sizes (1024 and 4096). In the trade between transmission channel characteristics, bandwidth efficiency, coding gain, and block size, all three rates and block sizes 1024 and 4096 are applicable. This FEC code can is only used with SOQPSK-TG modulation. Figure 6-49 illustrates SOQPSK-LDPC selection on the GUI. The user clicks on the arrow ( ) icon next to LDPC, which accesses an ON/OFF pull-down menu. Advanced Settings accesses LDPC settings. Graphic For GUI LDPC Selection Not Available At time of User Guide Release Graphic For GUI LDPC Advanced Settings Not Available At time of User Guide Release Figure 6-49 LDPC Selection on GUI Figures 6-50 thru 6-52 shows how to enable and set-up SOQPSK-LDPC using the Touch Screens. The user touches the LDPC button on the Demodulator Keyboard Screen, which turns GREEN when enabled. The Demodulator Status Screen LDPC indicates ON as shown. The user then touches the LDPC Block Size and LDPC Code buttons for keyboard access as shown in Figures 6-53 and 6-54. Graphic For LDPC Selection Not Available At time of User Guide Release Graphic For LDPC Selection Not Available At time of User Guide Release Figure 6-50 LDPC Selection on Touch Screens Graphic For LDPC Touch Screen Block Size Selection Not Available At time of User Guide Release Graphic For LDPC Touch Screen Block Size Selection Not Available At time of User Guide Release Graphic For LDPC Touch Screen Block Size Selection Not Available At time of User Guide Release Figure 6-51 LDPC Block Size Selection on Touch Screens A2536-003/01 August 2017 6-28 SEMCO Proprietary Information

Graphic For LDPC Touch Screen Code Selection Not Available At time of User Guide Release Graphic For LDPC Touch Screen Code Selection Not Available At time of User Guide Release Graphic For LDPC Touch Screen Code Selection Not Available At time of User Guide Release Figure 6-52 LDPC Code Selection on Touch Screens 6.2.8.13 Viterbi FEC Viterbi FEC is an algorithm used by the demodulator to recover a convolutional encoded signal. This feature is used to compensate for noise in the modulated signal received by the receiver and provides error correction that in most cases results in complete recovery of the original convolutional encoded signal. The rate and K factor available in the receiver is Rate ½ K=7. Figure 6-53 illustrates Viterbi FEC selection on the GUI. The user clicks on the arrow ( ) icon next to Viterbi, which accesses an ON/OFF pull-down menu as shown. Graphic For GUI Viterbi Selection Not Available At time of User Guide Release Figure 6-53 Viterbi Selection on GUI Figure 6-54 illustrates Viterbi FEC selection using the Touch Screens. The user touches the Viterbi FEC button on the Demodulator Keyboard Screen, which toggles an ON/OFF indication as shown. Graphic For Viterbi Touch Screen Code Selection Not Available At time of User Guide Release Graphic For Viterbi Touch Screen Code Selection Not Available At time of User Guide Release Figure 6-54 Viterbi FEC Selection on Touch Screens A2536-003/01 August 2017 6-29 SEMCO Proprietary Information

6.2.8.14 Turbo Code FEC Turbo FEC applies to situations where data quality can be improved over bandwidth or latencyconstrained communication links in the presence of data-corrupting noise. Provided as a custom application based on customer specifications, Turbo codes provide very similar performance when compared to LDPC FEC. Figure 6-55 illustrates Turbo Code selection on the GUI. The user clicks on the arrow ( ) icon next to Turbo, which accesses an ON/OFF pull-down menu as shown. The user then clicks on Advanced Settings to access the Turbo Code settings as shown. Graphic For GUI Turbo Code Selection Not Available At time of User Guide Release Graphic For GUI Turbo Code Settings Not Available At time of User Guide Release Figure 6-55 Turbo Code FEC Selection on GUI Figure 6-56 illustrates Turbo Code FEC selection using the Touch Screens. The user touches the Turbo FEC button on the Demodulator Keyboard Screen, which accesses window that provides for user selection of the available Turbo Codes. The Turbo Code selection is indicated on the Demodulator Status Screen as shown. Graphic For Touch Screen Turbo Code Selection Not Available At time of User Guide Release Graphic For Touch Screen Turbo Code Selection Not Available At time of User Guide Release Graphic For Touch Screen Turbo Code Selection Not Available At time of User Guide Release 6.2.8.15 I/Q Interleaving Figure 6-56 Turbo Code FEC Selection on Touch Screens Figure 6-57 shows how to select I/Q Interleaving for QPSK and UQPSK demodulator formats using the GUI. The user clicks on Advanced Settings, which accesses an Interleaving ON/OFF pull-down menu as shown. A2536-003/01 August 2017 6-30 SEMCO Proprietary Information

Figure 6-57 I/Q Interleaving Selection on GUI Figure 6-58 shows how to select I/Q Interleaving for QPSK and UQPSK demodulator formats using the Touch Screens. The user touches the Demodulator Keyboard Screen Interleaving button, which turns GREEN when enabled. The Interleaving indication on the Demodulator Status Screen is ON as shown. Figure 6-58 I/Q Interleaving Selection on Touch Screens A2536-003/01 August 2017 6-31 SEMCO Proprietary Information

SECTION 7- MULTI- CHANNEL BIT SYNCHRONIZER/FRAME SYNCHRONIZER AND BERT The multi-channel channel Bit Sync/Frame Sync/BERT option is available as an addition to the embedded bit syncs and de-randomizers in each of the demodulator channels. This option has userselectable internal (from each demodulator) and external (from rear panel) input switching, programmable Frame Sync, BERT and PN Generator. It can be used as an independent Bit Sync/Frame Sync/BERT or used in conjunction with each channel s demodulator output for TTL and RS422 bit sync/frame sync outputs, as well as BER loop testing of each receiver and combiner channel. The following paragraphs describe the setup windows that are available when this option is installed. 7.1 GUI Bit Sync/Frame Sync/BERT Setup and Controls The user clicks on Windows and Bit Sync in the GUI Toolbar as shown in Figure 7-1 to access the Bit Sync/Frame Sync/BERT Status window. There are two bit synchronizers that accept data rates up to 40 Mbps. Bit error rates are measured on a single channel at any given time, in addition to the frame sync indication. Figure 7-1 Bit Sync/Frame Sync/BERT Window Referring to Figure 7-1, there are four tabs (Status, Setup 1, Setup 2, and BERT & FS. The Status window displays basic set up information for each channel as well as Phase Lock Loop (PLL), Frame Sync (FSYNC), and BERT lock indicators. There are no adjustable settings on this window. The user clicks on Setup 1 to access the Channel 1 Bit Synchronizer/Frame Synchronizer Control Window (Figure 7-2). This window allows the user to set the specific parameters for the Channel 1 Bit- Sync and/or Frame Sync. The third tab labeled Setup 2 is the Channel 2 Bit Synchronizer/Frame Synchronizer Control Window, with controls that are identical to the Channel 1 window. A2536-003/01 August 2017 7-1 SEMCO Proprietary Information

Figure 7-2 Bit Sync/Frame Sync Setup Window Referring to Figure 7-2, the user clicks on and sets up the following parameters: A. Rate (kbps) - Up to 40000 (40 Mbps) B. Format - NRZ-L, NRZ-M, NRZ-S, Bi-phase-L, Bi-phase-M, Bi-phase-S C. Loop BW - Percentage of the data rate (0.01%, 0.1%, 1.0%, 1.5%) D. Input Z - Selects high or low (Single Ended) input impedance E. Data Invert - Inverts the output data polarity F. Clock Invert - Inverts the output clock polarity G. Descramble - Enables the Descramble function H. AGC Enable - Enables AGC for low input signals I. Filtering - Enables input signal filtering based on bit rate J. FSYNC PAT - The selections available are four standard Barker codes. The user can select one of the standard predefined patterns or type in a user defined pattern. K. Sync Word Length - Changes automatically when the user selects a value in the FSYNC pattern box, but for a user-input pattern, the user needs to input the Sync word length. L. Bits/Word - Choose a standard predefined length of 8, 16, 32 or 64 or enter a user defined length. M. Words/Frame - Choose a standard predefined length of 512, 1024 or 2048 or enter a user defined length. N. FSYNC Thresh - Allows frame sync detection events with errors in the frame sync (threshold may be less than or equal to Sync Word length). A2536-003/01 August 2017 7-2 SEMCO Proprietary Information

The user clicks on BERT & FS to access the BERT/Frame Sync Window (Figure 7-3). This window allows the user to set the specific parameters for the Bit Error Rate Tester (BERT) and the encoder outputs. Figure 7-3 BERT & Frame Sync Setup Window Referring to Figure 7-3, the user clicks on and sets up the following parameters: A. BERT/Frame Source Selector - The BERT or frame sync detection will be performed on the channel selected in the pull down menu in the top left portion of the window below the BERT and FSYN buttons. The two selections available are EXT (1) and INT (2). The EXT (1) is an external input connector located on the rear panel of the chassis. This external input can accept an external baseband video signal from any external source, and the bit sync/frame sync/bert can now be used as a stand-alone device. Setup for this channel can be located in the Setup 1 control window. The INT (2) or internal input is fed directly from the receiver s demodulator. To select which video baseband signal is internally routed to the bit-sync, the user selects and configures Video 5 on the demodulator control panel. B. BERT/FSYN buttons - The ON/OFF buttons for the Bit Error Rate Tester and Frame Synchronizer are located in the upper left corner of the window. The user starts the BERT counters located to the right of the button by clicking the BERT function ON. Clicking on the FSYN button will engage the frame synchronizer feature. C. BERT Results - There are two display boxes for viewing the BER testing results located in the upper right corner. The user clicks on the arrow icons in each box to access pull-down menus and configure these boxes. The selections are Accumulated Errors, Total Bits, Test Errors, Average BER and Elapsed Seconds. D. Pseudo Random Patterns - The Sequence selector is located below the BERT Results boxes. The user clicks on the arrow icon in the Sequence box to access a pull down menu and set the Pseudo random PN pattern for the input data signal. A2536-003/01 August 2017 7-3 SEMCO Proprietary Information

E. Test - The Test section of the window allows the user to configure the BERT test duration. It includes a pull down menu to configure the test length and a Restart button to clear the error registers. Clicking on the arrow icon in the Test Length box, the user accesses a pull-down menu for selection BER tests of bit number intervals, or it can be set up to run continuously. Test intervals of 10^3 to 10^8 bits can be chosen. Upon completion, the Test Complete LED will light and the test will repeat itself. F. BERT - The BERT status buttons in the lower left hand portion of the window shows BERT lock/unlock status (SYNC or SYNC LOSS). G. Encoder Output - The Encoder Output section in the lower right hand portion of the window allows the user to configure the encoder clock and data outputs. There are selections for bit rate (Rate kbps), output line encoding format (Output FMT), pseudo random data sequences (Sequence), data inversion (invert POL) and an ON/OFF (Enabled) button. Clicking on the arrow icon in the Sequence box and accessing the pull-down menu, the user can select Pseudo-random patterns PN23, PN15, PN11 (2047), PN9 (511), PN7, and PN6 (63) in forward or reverse modes. The output format selection in the Output FMT pull-down menu includes NRZ-L, M, and S, and Bi- Phase-L, M, and S. Clicking on the invert POL box inverts the data. Clicking the Enabled LED activates the PN output. The PN encoder will output to the receiver rear panel encoder data and clock outputs. 7.2 Touch Screen Bit Sync/Frame Sync/BERT Setup and Controls Bit Sync, Frame Sync and BERT setup using the Touch Screens is depicted in Figure 7-4. The user either swipes the Status Screen or uses the Shortcut Menu Screen to access the Bit Sync Status Screen. This also enables the Bit Sync Keyboard Screen, and the user uses these screens to configure The Bit Sync, Frame Sync and BERT as shown. Graphic For Bit Sync, Frame Sync and BERT Status Screen Not Available At time of User Guide Release Graphic For Bit Sync, Frame Sync and BERT Keyboard Screen Not Available At time of User Guide Release Graphic For Bit Sync, Frame Sync and BERT Keypad Screen Not Available At time of User Guide Release Figure 7-4 Touch Screen Bit Sync/Frame Sync/BERT Setup A2536-003/01 August 2017 7-4 SEMCO Proprietary Information

SECTION 8 BUILT-IN-SELF-TEST (BIST) The BIST module is a calibrated embedded RF source (200-1150 MHz & 1415 to 2485 MHz) with Multi- Mode Modulation and PN data formats that are used in conjunction with an embedded BERT for BER self-test as well as several other receiver performance tests. It is designed to run in the background as well as be used for receiver diagnostic testing. 8.1 BIST Control Window Design The BIST control window design follows the successful design and implementation of SEMCO s Automated Telemetry Test System (ATTS 5000), which is shown in Figure 8-1. Figure 8-1 BIST Control Window Design The BIST Control Window provides the ability to select and run a wide variety of tests, plot BER performance and print Test Data Records (TDRs). Configuration information and Test Status uses the upper right corner of the control window. In the upper left hand corner (Select Tests), the user can select ALL or NONE. The left hand side of the window allows the selection of individual tests, as well as selecting frequency bands for spurious response testing. BER setups use the Bit Error Rate Performance box located in the middle lower portion of the control window. BER plots are conducted in the middle right portion of the control window. Test Frequency selection is in the upper middle of the control window, and the buttons for running BIST after all desired test setups have been performed is in the lower right portion of the control window. These BIST controls include Run Tests, Clear Display, Test Report functions and EXIT. 8.2 GUI BIST Setup and Control The user clicks on Windows and then BIST in the Toolbar, which opens the BIST Control Window as shown in Figure 8-2. The user then selects which tests to run and clicks on Run Tests in the lower right hand corner of the window. A2536-003/01 August 2017 8-1 SEMCO Proprietary Information

8.3 Touch Screen BIST Setup and Control Figure 8-2 GUI BIST Setup BIST setup using the Touch Screens is depicted in Figure 8-3. The user either swipes the Status Screen or uses the Shortcut Menu Screen to access the BIST Status Screen. This also enables the BIST Keyboard Screen, and the user uses these screens to configure and run BIST testing as shown. Graphic For BIST Status Screen Not Available At time of User Guide Release Graphic For BIST Keyboard Screen Not Available At time of User Guide Release Graphic For BIST Keypad Screen Not Available At time of User Guide Release Figure 8-3 Touch Screen BIST Setup A2536-003/01 August 2017 8-2 SEMCO Proprietary Information

SECTION 9- TM OVER I/P 9.1 Description The RC300 embedded receiver TM over IP interface supports multiple IRIG standard telemetry data formats, including DMQ/DQE interfaces and user specified custom interfaces (consult the factory). The main user interface is the IRIG formats. These can be broken down into two main interfaces: PCM data Interfaces and IRIG Chapter 10 Interfaces. The embedded TM over IP module accepts data and clock signals from the three demodulators in the receiver and provides a single Ethernet output as shown in Figure 9-1. Demodulator Data CLK Data Demodulator CLK TMoverIP Ethernet CLK Demodulator Data Figure 9-1 TM over IP Block Diagram A dedicated Ethernet TM over IP output connection that auto detects at 10, 100 or 1000 Mbps is provided on the receiver rear panel. Operation is over a either a UDP or TCP connection. 9.1.1 PCM TM over IP The embedded TM over IP module in PCM mode supports IRIG chapter4/8 Format 1 data. This interface transfers the demodulated data by routing the recovered clock and data signals to the TM over IP module. In this mode, the data is transported in data packets to the reception device, which reproduces the data and clock signals. This can be done using UDP or TCP packets based on the user configuration. The user can also transport time with the packets based on an IRIG timing signal or network timing if desired. 9.1.2 Chapter 10 TM over IP The embedded TM over IP module also supports IRIG 106-07 Chapter 10 packets, including Time Data, Format 1 (IRIG/GPS/RTC) as defined in RCC Document 106-07, Telemetry Standard, Chapter 10, September 2007, section 10.6, table 10-7 (Figure 9-2). A2536-003/01 August 2017 9-1 SEMCO Proprietary Information

Figure 9-2 Supported Chapter 10 Data Formats Packet formatting follows the definitions found in section 10.6.2.2 of the IRIG standard, with the general packet structure shown in Figure 9-3. Figure 9-3 General Chapter 3 Packet Structure A2536-003/01 August 2017 9-2 SEMCO Proprietary Information

The RC300 supports 16-bit and 32-bit aligned unpacked mode as defined in the IRIG Chapter 10, subsections a, b & c of section 10.6.2.2. Timing is transmitted as specified in IRIG Chapter 10 section 10.6.3.2, and is treated like another data channel. The general time packet structure is shown in Figure 9-4. Figure 9-4 General Time Packet The UDP Ethernet output packets can be both segmented and non-segmented depending on the configuration. The hardware for TM over IP provides maximum flexibility with standard configurations for IRIG Chapter 10, Chapter4/8 PCM data and user specified custom interfaces with factory support. 9.2 GUI TM over IP Setup TM over IP setup is depicted in Figure 9-5. The user clicks on Windows and then TM over IP on the Toolbar. This accesses the TM over IP Configuration Window as shown. TM over IP Graphic Not Available at Time of User s Guide Release. Contact the Factory for Required Additional and Supplemental Information 9.3 Touch Screen TM over IP Setup Figure 9-5 TM over IP Setup TM over IP setup using the Touch Screens is depicted in Figure 9-6. The user either swipes the Status Screen or uses the Shortcut Menu Screen to access the TM over IP Status Screen. This also enables the TM over IP Keyboard Screen, and the user uses these screens to configure the TM over IP outputs as shown. A2536-003/01 August 2017 9-3 SEMCO Proprietary Information

Graphic For TM over IP Status Screen Not Available At time of User Guide Release Graphic For TM over IP Keyboard Screen Not Available At time of User Guide Release Graphic For TM over IP Keypad Screen Not Available At time of User Guide Release Figure 9-6 Touch Screen TM over IP Setup A2536-003/01 August 2017 9-4 SEMCO Proprietary Information

10 REMOTE NETWORK SOFTWARE Any number of RC300-2 receivers can be remotely controlled and operated via Ethernet using SEMCO s System Level Telemetry Software (SLTS). A copy of this software is provided with every delivered RC300-2, as well as a Lantronix software application that is used for setting up a network of RC300-2 receivers. This section of the User s Guide provides the steps required to set up a network, as well as a description of how the SLTS Network GUI is used for RC300-2 set-up and operation. 10.1 Initial Remote Network Setup Figure 10-1 is a block diagram that shows the required Server and RC300-2 network connections, using standard RJ45 Ethernet cables. The RC300-2 has 2 RJ45 Ethernet connections on the rear panel, and the one used for network control is labeled LAN. The required server for networking RC300-2 receivers is any PC with Windows 7 or 10 Operating System. RC300 RC300 SERVER Ethernet Hub RC300 RC300 Additional RC300 Receivers as required Figure 10-1 Server and RC300-2 Network Connections Step 1 - Once the network is configured, install the SLTS software and Lantronix software application on the Server, which will result in both the SEMCO SLTS and Lantronix Device Installer icons appearing on the Server Desktop as shown in Figure 10-2. Figure 10-2 Server SLTS and Lantronix Desktop Icons Step 2 - Open the SLTS software. If the IP addresses of the connected RC300-2 receivers are already recognized by the SLTS program, then the Receiver Status Window shown in Figure 10-3 will appear for each connected RC300-2, and the connected RC300-2 IP addresses will be listed under IP address. (Figure 10-3 shows one RC300-2 connected with an IP address of 192.168.0.100). Figure 10-3 SLTS Receiver Status Screen A2536-003/01 August 2017 10-1 SEMCO Proprietary Information

Step 3 If the Receiver Status Screen does not display each receiver s IP address and status, then open the Lantronix DeviceInstaller and it will search for the IP address of all attached receivers. This is accomplished by double-clicking on Lantronix Devices, PremierWave and then PremierWave SE1000 (256MB)-firmware as shown in Figure 10-4. The IP addresses of each connected RC300-2 will be listed as shown (in this example, one receiver with an IP address of 192.168.0.100 is listed). Figure 10-4 Receiver IP Address Search Step 4 Copy down all listed receiver IP addresses and click on Edit, System Address List, Edit System Address List and Add as shown in Figure 10-5. In the Create System Connection Setup window, enter each connected receiver IP address by typing in each IP address in the window below IP Address as shown. It is also a good time to edit Name by typing in information that will tie a particular receiver S/N or location to its IP address. (In the Figure 10-5 example the receiver S/N DEMO-1704 has been used). Click on Create after the receiver s IP address and desired Name has been entered. Repeat this step for each receiver IP address. Figure 10-5 Entering Receiver IP Address and Name A2536-003/01 August 2017 10-2 SEMCO Proprietary Information

10.1.1 Changing a Receiver IP Address Step 1 - Open the Lantronix DeviceInstaller and double-click the receiver s IP address. Referring to Figure 10-6, select the Web Configuration tab. Click on the Refresh button, and a prompt for a username and password will appear. The factory-default username is admin and PASS is the default password. Step 2 - Referring again to Figure 10-6, click on the Network side-tab and then the Configuration button. The IP address, Gateway, and other parameters can be set here. Make the desired changes, and then reboot the receiver. After reboot, check the DeviceInstaller per Step 3 above to verify settings. Figure 10-6 Changing a Receiver IP Address Step 3 - Open the SEMCO SLTS remote software and add the new receiver IP Address and Name per Step 4 and Figure 10-5 above. The Control IP Port, Eye Pattern IP Port, and Spec IP Port must be as shown in Figure 10-5 above. Step 4 - Click on Create. The Edit System Address List window will show the added receiver. Click Add to add additional receivers in the same manner, or click the x to exit. The main status screen should update within a few seconds to show each added receiver. 10.1.2 System Naming Feature As previously mentioned and described in paragraph 10.1, Step 4, the System ID on the SLTS Status Window can be changed with an identifier that ties each receiver to its IP address. This System ID can also be matched to the System Name, thereby providing a correlation to the receiver s System ID, IP Address and Name. This is particularly useful when there are several receivers on a network. A2536-003/01 August 2017 10-3 SEMCO Proprietary Information

The System ID is changed in the Create System Connection Setup window, as shown in paragraph 10.1, Step 4, and the receiver s Name is changed as shown in Figure 10-7. Referring to Figure 10-7, the user double-clicks on any information window in the SLTS Receiver Status Window, which accesses the Receiver Control Window as shown. The user then clicks on System Config and Naming Options in the Receiver Control Window Toolbar. This provides access to the System Name window, and the user can now enter system names for the overall System Name, Channel 1, Channel 2 and Combiner 1. In the Figure 10-7 example, the System Name (SEMCO DEMO) ties back to the System ID (DEMO- 1704) and its IP Address. Channel 1, Channel 2 and Combiner 1 can be named as desired. 10.1.3 SLTS Network Design Features Figure 10-7 System Naming Feature The design of the SLTS Network Software windows and status displays incorporate lessons learned and experience working over the years with users at the various Telemetry sites around the world. This design is reflected in the layout and look of each setup and display window. From a technical Telemetry perspective, System setup and operation using the SLTS Network Software is closely identical to using the local GUI as previously described in Sections 4 thru 9 of this User s Guide. Accordingly, the following paragraphs sequentially address Receiver, Combiner, Demodulator, Bit Sync/BERT, Built-In-Self-Test and TM Over IP operation using the SLTS Network Software. Only setups and display steps are primarily addressed and, with some exceptions, technical descriptions of each performance feature are not duplicated here. Accordingly, the user is encouraged to refer back to the applicable paragraphs in Sections 4 thru 7 as required. In addition, for reference purposes, the following procedures will refer to LT (CH1), RT (CH2) and CMB (Combiner), which is the naming convention used by SLTS for the system described herein. A2536-003/01 August 2017 10-4 SEMCO Proprietary Information

10.2 Receiver Setup and Operation The following paragraphs address Channel 1 and Channel 2 receiver setup and operation. 10.2.1 RF Frequency Settings Figure 10-8 shows the RC300-2 Remote GUI. The user double-clicks on any information window in the SLTS Receiver Status Window, which accesses the Receiver Control Window as shown. The user then clicks on either LT or RT as shown, which accesses the receiver set-up window for CH1 or CH2. The user clicks on the Input Freq (MHz) box circled in red, erases the frequency, types in the new frequency and hits Enter. The box will return to gray indicating that the RF Tuner has accepted the new frequency. The SYNTH window to the right of the Frequency box indicates a green LOCK when the receiver is capable of tuning to different frequencies. The SYNTH window to the right of the Frequency box is a red UNLOCK when either the 10 MHz reference is not functioning properly (including the proper Internal/External selection) or there is an RF Tuner malfunction. The user is not able to select a frequency when this situation occurs. Figure 10-8 Frequency Selection The up-down arrows to the right of the frequency box are used to step the frequency in 0.1 MHz increments. The user can change the frequency increments to 1.0 or 10.0 MHz by selecting Edit, Set Defaults and clicking on the desired Frequency Up/Down Increment as shown in Figure 10-9. A2536-003/01 August 2017 10-5 SEMCO Proprietary Information

Figure 10-9 Frequency Up/Down Increment Selection 10.2.2 Receiver Signal Strength Indicator (RSSI) The RSSI display (Figure 10-10) provides for (Absolute) Signal Strength at the receiver RF input. When AGC Zero is enabled (ON), the signal strength display switches to (Relative) Signal Strength, which sets the readout at 0 db and reading +/- db relative to that input signal level. Figure 10-10 Absolute and Relative Signal Strength Display Figure 10-11 depicts the RSSI Maximum (Max) and Average (Avg) Signal Level feature, which provides the user with both maximum and average RF signal levels as they occur during a mission. The user places the cursor over the RSSI bar as shown in order to obtain these RF signal level readouts. Figure 10-11 Maximum/Average Signal Strength Indicator A2536-003/01 August 2017 10-6 SEMCO Proprietary Information

The Antenna Signal Strength feature (figure 10-12) provides an indication of signal strength at the antenna based on a user-specified correction factor (CF) that represents the signal loss or gain between the antenna and the receiver. The user clicks the small box under Antenna CF and (Antenna) Signal Strength is displayed. The user then enters a numerical +/- correction factor in the box under Antenna CF as shown, and the (Antenna) Signal Strength now reads the RF signal level that represents the signal level at the antenna. In the Figure 10-12 example, the (Absolute) Signal Strength is -61 dbm, and the (Antenna) Signal Strength is -41 dbm, taking into account a loss of -20 dbm between the antenna and receiver. 10.2.3 10 MHz Reference Settings Figure 10-12 Antenna Signal Strength Feature Clicking on the GUI Tool Bar Settings and then 10 MHz Reference allows the user to select either an Internal or External 10 MHz reference as shown in Figure 10-13. Figure 10-13 10 MHz Reference Selections A2536-003/01 August 2017 10-7 SEMCO Proprietary Information

10.2.4 IF SAW Filter Selection IF SAW filter bandwidth selection is a pull-down menu accessed by clicking on the arrow icon to the right of the IF BW box (Figure 10-14). IFBW selections range from 300 khz to 40 MHz. In addition to these IFBW value selections, there is also an Auto IF SAW Bandwidth selection as shown. Clicking on IF BW enables this feature as shown (AUTO IF ON), and the IFBW box displays the IFBW value that has been automatically selected as a function of demodulator mode and data rate. The Auto IF SAW Filter Bandwidth feature will always select the closest IF SAW filter value equal to or greater than the recommended IRIG value for the data rate and demodulation mode selected. AUTO IF SAW Filter Graphic Not Available At Time of User Guide Release 10.2.5 IF FIR Filter Selection Figure 10-14 IF SAW Filter Bandwidth Selection The IF FIR filter bandwidth value is a pull-down menu accessed by clicking on Advanced Settings and then clicking on the arrow icon to the right of the IF FIR Filter BW window (Figure 10-15). In addition to the 15 IF FIR filters to choose from, clicking on IF FIR Filter BW enables AUTO IF ON, and the IF FIR Filter BW box displays the FIR Filter value that has been automatically selected as a function of demodulator mode and data rate. The Auto IF FIR Filter Bandwidth feature will always select the closest IF FIR filter value equal to or greater than the recommended IRIG value for the data rate and demodulation mode selected. IF FIR Filter Graphic Not Available At Time of User Guide Release Figure 10-15 IF FIR Filter Bandwidth Selection A2536-003/01 August 2017 10-8 SEMCO Proprietary Information

10.2.6 AM Settings AM settings are provided via the pull-down menu as shown in Figure 10-16. The user clicks on the Polarity box, which toggles between Normal and Inv. AM Polarity can also be set on the Control Window as shown. Clicking on the Impedance box toggles between High and Low. The user can enter a Low Pass Filter value between 0 Hz and 30000 Hz (30 khz) by entering the desired value in the Filter (Hz) box. 10.2.7 AGC Slope and Polarity Figure 10-16 AM Polarity, Impedance and Low Pass Filter Selection Figure 10-17 depicts the pull-down windows for AGC POLARITY (POS or NEG) and AGC SLOPE (10, 20 and 50 db/volt). Two AGC outputs per channel (AGC A and AGC B) are available. AGC voltage output levels are displayed on each receiver control panel, and a Maximum (Max) and Average (Avg) readout is available at any time during a mission by placing the cursor over the AGC Voltage bar graph as shown in order to obtain these AGC voltage readouts. Figure 10-17 AGC Slope and Polarity A2536-003/01 August 2017 10-9 SEMCO Proprietary Information

10.2.8 AGC Output Impedance Figure 10-18 shows how to select AGC output impedance. The user clicks on the arrow icon in the IMP box, which provides a pull-down menu (Hi-Z or Low-Z). This feature is used for connecting the AGC output to devices with an input impedance of <5K ohms (Low-Z) or >5K ohms (High-Z). 10.2.9 AGC Zero Figure 10-18 AGC Output Impedance AGC Zero zeroes the AGC voltage level at a user-desired signal level (typically the noise floor). This feature is enabled on the by clicking on the window below AGC Zero, which turns ON (Figure 10-19). The (Absolute) Signal Strength indicator changes to (Relative) Signal Strength when AGC Zero is enabled and the readout is 0 db relative to the signal level present when AGC Zero is activated. A red CARRIER indicator (just left of the (Relative) Signal Strength Indicator is enabled when AGC Zero is enabled, indicating a Signal-to-Noise Ratio (SNR) of <1 (i.e., below +3 dbm). A green CARRIER indication occurs with the presence of an in-band RF signal that is 3 dbm or greater than the level where AGC Zero was enabled. Acquisition-of-Signal (AOS) and demodulator lock should occur at this level. AGC Zero Carrier Unlock Graphic Not Available At Time of User Guide Release AGC Carrier Lock Graphic Not Available At Time of User Guide Release Figure 10-19 AGC Zero Feature A2536-003/01 August 2017 10-10 SEMCO Proprietary Information

10.2.10 AGC Time Constant Selection The AGC Time Constant value is a pull-down menu selected by clicking on the arrow icon to the right of the AGC TC box (Figure 10-20). There are five AGC Time Constant values available (0.1, 10, 100 and 1000 ms). Selecting any one of these AGC time constant values will affect the attack and recovery time of the linear 70 MHz IF output, as well as the internal 70 MHz input to the demodulator. It does not affect the attack and recovery time of the demodulated AM output signal. The AM signal output is at a fixed 100 ms AGC time constant that provides optimum AM response for ACU antenna tracking functions, while the ability to select faster AGC time constants optimizes demodulator data quality and BER performance. 10.2.11 AGC Gain Mode Figure 10-20 AGC Time Constant Selection AGC Gain Modes include AGC, AGC Freeze and AGC Manual. The user clicks on the arrow icon next to AGC Gain, which accesses a pull-down menu (Figure 10-21), and then clicks on AGC. In the AGC mode, the AGC is a linear output that tracks with the dynamic range of the receiver (i.e., -10 dbm to Noise Threshold). The AGC mode is the default mode, and should be selected and used for all mission support requirements. AGC Gain Mode Graphic Not Available At time of User Guide Release Figure 10-21 AGC Gain Mode Selection A2536-003/01 August 2017 10-11 SEMCO Proprietary Information

10.2.12 AGC Freeze Mode Figure 10-22 depicts the AGC Freeze feature. The GUI AGC Freeze feature allows the operator to freeze or hold the gain of the selected receiver, and is primarily used to measure signal to noise ratios on the receiver s IF output to perform Antenna G/T measurements. Without AGC Freeze, the receiver would normally amplify incoming signals, including noise; at different gain levels as determined by the selected IF filter bandwidth. Freezing (holding) the receiver gain at a fixed level independent of signal input level allows the operator to measure signal noise floor levels by measuring the IF output at different noise input levels. The AGC Freeze mode should not be used for receiver mission support. AGC Gain Mode Graphic Not Available At time of User Guide Release Figure 10-22 AGC Freeze Selection The receiver also has programmable attenuators for front end protection and a calibrated linear dynamic range. However, attenuator operation will sometimes affect the accuracy of antenna G/T measurements at approximately -70 dbm to >-50 dbm noise floor levels. An Attenuator Disable feature (Figure 10-23) precludes this possibility and ensures accurate G/T measurements. In addition, the Auto Static Attenuator feature (Figure 10-23) provides for improved mission performance in high S/N environments. However, this feature does decrease the dynamic range of the receiver and is not recommended for missions with link margins that require the receiver s entire dynamic range. Right clicking on AGC Freeze as shown in Figure 10-23 accesses both features. Attenuator Disable and Auto Static Attenuator Graphic Not Available At time of User Guide Release Figure 10-23 Attenuator Disable and Auto Static Attenuator A2536-003/01 August 2017 10-12 SEMCO Proprietary Information

10.2.13 AGC Manual Mode Figure 10-24 depicts the AGC Manual feature. The AGC Manual feature allows the user to manually control the AGC output over a limited range. In normal AGC mode, the IF output level of the receiver is approximately -10 dbm. An Automatic Level Control (ALC) circuit keeps this signal level constant and controls this amplitude during input signal amplitude changes. In AGC Manual mode, the auto ALC function is turned off and the output level can be manually controlled. The adjustable range of the output in AGC Manual mode is approximately 0 dbm to -20 dbm, which correlates to a numerical value from 0 to 4095. This mode is for test purposes only and should not be used in mission support scenarios. AGC Manual Mode Graphic Not Available At time of User Guide Release Figure 10-24 AGC Manual Selection 10.2.14 Automatic Frequency Control (AFC) Clicking on the arrow icon in the AFC box accesses a pull-down menu for selection of four AFC Loop Speeds, Manual AFC and Reference (Ref) AFC (Figure 10-25). When the AFC circuit is locked at any one of the four loop speeds, the AFC button is GREEN and the Loop Stress frequency readout indicates the frequency offset of the incoming signal. The AFC button is RED when the signal threshold is too low for AFC, or the RF signal is > +/- 250 khz offset from the RF input frequency. Figure 10-25 AFC Feature A2536-003/01 August 2017 10-13 SEMCO Proprietary Information

Selection of AFC MANUAL (Figure 10-26) allows the operator to tune the receiver approximately +/-200 khz from the center frequency selected. When MANUAL is selected, an Offset and slide bar appears as shown and the slide bar can be adjusted for positive or negative frequency offset using the mouse. Selection of AFC REF coherently locks CH1 and CH2 to the 10 MHz Reference signal. The AFC REF mode is recommended for optimum Diversity Combiner operation. The AFC MANUAL mode with an Offset indication of 0 khz can also be used in conjunction with a Diversity Combiner. 10.2.15 Pre-d Record and Playback Figure 10-26 AFC MANUAL The Pre-d Record and Tape Playback feature provides the ability to down-convert the pre-d 70 MHz IF for recording purposes, as well as provide for CH1CH2 playback of this recorded signal. The user has the ability to down-convert the 70 MHz IF to a frequency between 75 khz and 15 MHz in 1 khz steps. The user can also adjust the output and playback input levels of the down-converted signal as shown. Figure 10-27 shows how to access and set up the Pre-d down-conversion and output gain. The user clicks on Receiver Settings in the Toolbar and then Tape Playback, which opens up the Tape Playback window. The user types in and enters the desired down-converted frequency in the Frequency window. Slide bars are available as shown for CH1, CH2 and Combiner Tape rear panel output levels. Figure 10-27 Pre-d Tape Output Settings A2536-003/01 August 2017 10-14 SEMCO Proprietary Information

Figure 10-28 shows how to set up the Tape Playback feature. The user clicks on the Playback button, which turns GREEN when enabled. When Playback is enabled (ON), the RSSI display as well as the ability to tune for an RF input signal is disabled (greyed out) as shown. For proper Playback operation, the RF input should be disconnected or terminated in 50 ohms. Tape Playback Graphic Not Available At time of User Guide Release 10.3 Diversity Combiner Setup and Operation Figure 10-28 Tape Playback Settings This section provides a description and instructions for set-up, operation and status monitoring of the RC300-2 Optimal Ratio Pre-d and Post-d Diversity Combiner, including but not limited to Combiner modes, Best Source Selection feature, AGC Zero and balancing feature and combiner AM and AGC. 10.3.1 Combiner Output Mode The Combiner Output Mode (Figure 10-29) is a pull-down menu that allows the user to force the combiner to a Channel 1, Channel 2 or Combined output. Selecting either Channel 1 or Channel 2 forces the modulated IF signal from that channel through the Combiner Channel s Demodulator, and the Combiner Channel rear panel Video Outputs are the baseband video outputs of the selected channel. Figure 10-29 Diversity Combiner Output Mode A2536-003/01 August 2017 10-15 SEMCO Proprietary Information

10.3.2 Combiner Status Window The Combiner Status window indicates either a Combiner Lock or Unlock condition (Figure 10-30). A Combiner Lock indication means that the combiner is functioning in its AM/AGC optimal ratio-combining mode. A Combiner Unlock condition indicates that the Combiner is not functioning either as a Combiner or Best Source Selector. Typically, this indicates no signal input, a signal present at only one channel, or either Channel 1 or Channel 2 has been selected as the Combiner output mode. Figure 10-30 Diversity Combiner Status Display on GUI 10.3.3 Combiner Best Source Select (BSS) Figure 10-31 depicts the user-selectable Combiner Best Source Selector feature. Clicking on the BSS button toggles the indication OFF and ON. When BSS is ON, the Combiner becomes a Best Source Selector that automatically switches to the stronger of the CH1/CH2 signals during receiver operation. Figure 10-31 Diversity Combiner Best Source Selection on GUI A2536-003/01 August 2017 10-16 SEMCO Proprietary Information

10.3.4 Combiner Zero Function The Combiner Zero function, when activated optimizes Combiner performance between CH1 (Rcv1) and CH2 (Rcv2) by zeroing the CH1 and CH2 AGC inputs to the combiner with no signal applied. Referring to Figure 10-32, the user clicks on both the Combiner Zero Rcv1 and Combiner Zero Rcv2 windows to activate this feature, which turns GREEN when ON. The Combiner Zero feature is typically used to balance the CH1 and CH2 noise floors for optimum combiner and mission performance. 10.3.5 Combiner AGC Slope and Polarity Figure 10-32 Combiner Zero Feature AGC A Slope and AGC B Slope are selected via pull-down menus as shown in Figure 10-33. AGC A Polarity and AGC B Polarity are also selected via pull-down menus as shown. AGC voltage output levels are displayed on the Combiner control panel, and a Maximum (Max) and Average (Avg) readout is available at any time during a mission by placing the cursor over the AGC Voltage bar graph as shown in order to obtain these AGC voltage readouts. Figure 10-33 Combiner AGC Slope and Polarity Selection A2536-003/01 August 2017 10-17 SEMCO Proprietary Information

10.3.6 AGC Output Impedance Selection Figure 10-34 shows how Combiner AGC output impedance is selected. Low-Z is selected to drive external devices that are <5K ohms, and Hi-Z is selected for external devices that are >5K ohms. Combiner AGC Output Impedance Graphic Not Available At time of User Guide Release 10.3.7 AGC Zero Figure 10-34 Combiner AGC Output Impedance Selection on GUI Figure 10-35 shows how Combiner AGC Zero is enabled. Clicking on the window below AGC Zero enables this feature, which turns ON. AGC Zero zeroes the AGC voltage level at a user-desired signal level (typically the noise floor). Figure 10-35 Combiner AGC Zero Feature on GUI A2536-003/01 August 2017 10-18 SEMCO Proprietary Information

10.4 Demodulator Modes, Controls and Settings Demodulator modes, controls, settings and displays are described in the following paragraphs. 10.4.1 Demodulator Mode Selection Figure 10-36 depicts the Demodulator Mode Pull-Down Menu. Clicking on the arrow icon to the right of the Demod Mode box provides the ability to select a demodulator format. The set-up and features of each demodulator mode is described in further detail in paragraph 10.5 of this User s Guide. 10.4.2 Demodulator Data Rate Entry Figure 10-36 Demodulator Mode Selection Data Rate entry is shown in Figure 10-37. The user clicks on the Data Rate A window, types in the desired data rate and then hits Enter on the keyboard. Placing the cursor over the Data Rate box provides an indication of the data rate range for the demodulator format selected. Figure 10-37 Data Rate Entry A2536-003/01 August 2017 10-19 SEMCO Proprietary Information

Figure 10-38 shows the Data Rate A and Data Rate B window that appears when either AQPSK or AUQPSK demodulator format is selected. This allows the user to type in desired different ( Asynchronous ) data rates for the I and Q data streams. 10.4.3 Demodulator Input Source Figure 10-38 I and Q Data Rate Entry Each demodulator functions independently and can be switched to operate in conjunction with CH1 (RCV 1), CH2 (RCV 2) or the Combiner (CMB), as well as be switched to an external 70 MHz playback input (AUX 1, AUX 2 or AUX 3). Figure 10-39 shows the Input Source pull-down menu for this selection. 10.4.4 Demodulator Output Modes Figure 10-39 Demodulator Input Source Selection Selection of Analog, Digital or Mixed output modes set the video output configuration of each receiver and combiner channel as listed in Section 6, Table 6-2 of this User s Guide. A2536-003/01 August 2017 10-20 SEMCO Proprietary Information

Selection of Custom output mode allows the user to select analog or digital (Clock and Data) outputs on each of the four video outputs. Figure 10-40 depicts the Output Mode selections. Clicking on the arrow icon next to Output Mode enables a pull-down menu as shown. The user selects Custom and then Advanced Settings, and then customizes the video outputs using the pull-down menus associated with Video 0, Video 1, Video 2 and Video 3 as shown. Figure 10-40 Output Mode Selection 10.4.5 Analog Baseband Video Bandwidth and Gain Controls Video BW (Figure 10-41) displays the Video FIR filter bandwidth which, when AUTO Video FIR is enabled, is automatically calculated, applied and set as a function of data rate for analog FM, Trellis FM, PM, BPSK, SOQPSK and Multi-h CPM baseband video outputs. With AUTO Video FIR disabled, 15 selectable FIR Filter values are made available to the user for every data rate selected. Two Video Filter bandwidths are displayed for QPSK, A/U/QPSK and SOQPSK analog I and Q baseband video outputs. The user clicks on Advanced Settings and then Demod FIR BW to select either AUTO or any of the available FIR filter values in the pull-down menu as shown. Figure 10-41 Video FIR Filter Bandwidth Selection A2536-003/01 August 2017 10-21 SEMCO Proprietary Information

A Vp-p slide bar is provided as shown in Figure 10-42 to adjust the gain of analog base-band video outputs from 0 to >4 Vp-p into 75 ohms. These slide bars adjust the gain of the analog base-band video output. The slide bar is in Vp-p gradients and % readout and the receiver s non-volatile memory feature remembers and retains these values. The slide bar is adjusted by the mouse to set the desired baseband video gain amplitude. The Analog Gain A function applies to FM, Trellis FM, PM, BPSK and Multi-h CPM analog baseband video outputs. Analog Gain A and Analog Gain B are enabled for QPSK, AQPSK, UQPSK, A/U/QPSK and SOQPSK analog I and Q baseband video outputs. Figure 10-42 Baseband Video Gain Controls 10.4.6 Embedded Bit Synchronizer De-randomizer The demodulator s embedded bit synchronizer has a standard IRIG 15 bit de-randomizer feature as shown in Figure 10-43. The user enables the de-randomizer pull-down menu on the GUI by clicking on the Derand button, which turns ON. The user then clicks on Advanced Settings and Input Code to access the pull-down-menu. Input codes include the signal formats as shown in the pull-down menu and, by definition can be enabled for all demodulator formats except SOQPSK and Multi-h CPM. With the De- Randomizer ON, the receiver s baseband outputs are NRZ-L. Figure 10-43 Embedded Bit Synchronizer De-randomizer A2536-003/01 August 2017 10-22 SEMCO Proprietary Information

10.4.7 Auto Demodulator Settings Auto Settings are automatically programmed into the demodulator and embedded bit synchronizer when demodulation formats are selected. These automatic settings are based on data rates and demodulator characteristics required for optimum performance in most all telemetry missions, and facilitate quick mission set-up without extensive user knowledge and intervention. Available Auto settings are listed in Table 10-1 and described in more detail in Section 6, paragraph 6.2.7 of this User s Guide, including possible mission scenarios where the user may elect to disable Auto settings and enter values manually. Table 10-1 Auto Demodulator Settings Auto Setting Embedded Loop Bandwidth % Demodulator (Carrier) Loop Bandwidth% Sweep Range Sweep Rate (Hz/S) Mod Index IF FIR Filter Bandwidth Video FIR Filter Bandwidth Description Automatically calculates and sets the loop bandwidth value (BW%) of the embedded Bit Synchronizer. The narrowest bandwidth that still provides demodulator lock while providing the lowest C/N lock threshold possible. Automatically calculates and sets an optimum value in khz that provides for a demodulator acquisition time that applies to most data rates and demod formats. Automatically calculates and sets an optimum value in Hz/S that provides for a signal acquisition time that applies to most data rates and demod formats. Applies to the Trellis FM demodulation mode and sets a value that compensates for any drift or change in transmitter deviation during a mission. Automatically calculates the precise IF FIR filter value at the input to the demodulator based on the data rate and demodulation format selected by the user. Automatically calculates the precise Video FIR filter value at the output to the demodulator based on the data rate and demodulation format selected by the user. Figure 10-44 shows the demodulator and embedded bit sync AUTO Bandwidth, Sweep Range and Sweep Rate feature. Clicking on each box under Auto enables the Auto Bandwidth, Sweep Range and Sweep Rate feature. Clearing these boxes and then clicking on Advanced Settings provides the user with the ability to type in values for each Bandwidth and Sweep setting as shown. Figure 10-44 AUTO and Manual Bandwidth and Sweep A2536-003/01 August 2017 10-23 SEMCO Proprietary Information

10.4.8 Additional Advanced Demodulator Settings Additional advanced demodulator settings are listed in Table 10-2. The definition and description of these advanced settings and how they are used is provided in more detail in Section 6, paragraph 6.2.8. Table 10-2 Additional Advanced Demodulator Settings Auto Setting Fast Acquire Loop Bandwidth Divider FM Sweep De-Emphasis Low Pass Filter Coupling Modulation Indexing Data Quality Metric (DQM) System Degradation Indicator (SDI) Low Density Parity Check (LDPC) Adaptive Equalization (AE) Space Time Coding (STC) Viterbi Forward Error Correction (FEC) Turbo FEC I/Q Interleaving Description Optimizes the demodulator to acquire the incoming signal as fast as possible in FM, Trellis FM and SOQPSK-TG modes. Used for demodulator formats with a loop BW and when Fast Acquire is enabled. Allows a wider loop for acquisition, and automatically tightens the loop once lock is declared. Defines how much the Loop BW is reduced once lock is detected. Used when acquiring FM signals below 30 Kbps. When enabled, the receiver channel s AFC is ON and the demodulator s center frequency is swept to ensure that the desired signal is centered in the IF Filter. Used as required when receiving NTSC Video. Enabled for NTSC Video, and should always be turned ON whenever NTSC Video format is used. Provides AC or DC-coupled baseband video outputs. Applicable to the Trellis FM demodulator format, provides for Auto Mod Indexing (+/- 20% of 0.7 deviation) or Manual Mod Indexing (fixed value between +/- 20% of 0.7 deviation). DQM is a means to measure and select data quality from multiple signal sources (antennas). Embedded in the baseband video signal as it is processed by the receiver s demodulator, This DQM data is presented to a Best Source Selector (BSS), which then selects the best signal over time based on a signal quality algorithm. SDI is a demodulator output used with external Best Source Selectors and consist of SDI counts that are the value of a counter looking at 1000 symbols (at the maximum opening of the eye pattern) and counting the number of times the eye pattern exceeds the external count threshold, or falls to less than the internal count threshold. Additional SDI technical information is provided in Section 6, paragraph 6.2.8.8 of this User s Guide. LDPC is a Forward Error Correction (FEC) block code, meaning that a block of information bits has parity added to them in order to correct for errors in the information bits. The term low-density stems from the parity check matrix containing mostly 0 s and relatively few 1 s. AE mitigates RF multi-path that is present at the receiver s input and automatically adapts to time-varying properties of the RF signal. It is used in FM, PSK and SOQPSK-TG demodulation modes and mitigates the effects of multipath propagation and Doppler spreading. STC uses space diversity and time diversity to overcome the two-antenna problem, which is characterized by large variances in the antenna gain pattern caused by transmitting the same telemetry signal time through two transmit antennas. Viterbi FEC is an algorithm used by the demodulator to recover a convolutional encoded signal, compensating for noise in the received modulated signal and providing error correction resulting in optimum recovery of the original signal. Provided as a custom FEC application based on customer specifications, Turbo codes provide very similar performance when compared to LDPC FEC. Selectable interleaving of analog I and Q outputs. A2536-003/01 August 2017 10-24 SEMCO Proprietary Information

The following paragraphs provide additional details and address how to access these additional Advanced Settings. 10.4.8.1 Fast Acquire Figure 10-45 shows how to enable Fast Acquire. The user clicks on Advanced Settings and then the Fast Acquire window, which toggles ON/OFF as shown. The Fast Acquire feature is available for FM, Trellis FM and SOQPSK-TG demodulator formats. 10.4.8.2 Loop Bandwidth Divider Figure 10-45 Fast Acquire Figure 10-46 shows how to enable Loop BW Divider. The user disables Auto Bandwidths, clicks on Advanced Settings and then the arrow icon next to Loop BW Divider to access a pull-down menu with selections for reducing the Carrier Loop Bandwidth during initial signal acquisition. Loop BW Divider is available with Auto disabled for PM, BPSK, A/U/Q/PSK and SOQPSK-TG demodulator formats. Figure 10-46 Loop BW Divider A2536-003/01 August 2017 10-25 SEMCO Proprietary Information

10.4.8.3 FM Sweep Figure 10-47 shows how to enable Auto FM Sweep and Manual FM Sweep. The user clicks on Advanced Settings and then the Auto FM Sweep window to toggle ON as shown. Auto FM Sweep automatically turns AFC on to keep the FM signal in the required narrow IF bandpass for signal acquisition below 30 kbps. Manual FM Sweep is available when Auto FM Sweep is OFF, providing this same function for any FM data rate. Manual FM Sweep is primarily used in support of Post-d Combining. 10.4.8.4 Low Pass Filter Figure 10-47 FM Sweep Figure 10-48 shows how to enable the Low Pass Filter. The user clicks on Advanced Settings and then the Low Pass Filter window to toggle ON as shown. The Low Pass Filter feature is available to optimize NTSC Video-modulated RF signal quality and should always be used in conjunction in the FM demodulator format when receiving an NTSC Video signal. Figure 10-48 Low Pass Filter A2536-003/01 August 2017 10-26 SEMCO Proprietary Information

10.4.8.5 De-Emphasis Figure 10-49 shows how to enable De-Emphasis. The user clicks on Advanced Settings and then the De-Emphasis window to toggle ON as shown. The De-Emphasis feature is used in conjunction with the FM demodulator format when receiving an NTSC Video signal. 10.4.8.6 Coupling Figure 10-49 De-Emphasis Settings Figure 10-50 shows how to enable the Coupling feature. The user clicks on Advanced Settings and then the arrow icon next to Coupling to access an DC/AC pull-down menu. This setting provides for user-selectable AC or DC-coupled baseband video outputs. Figure 10-50 AC/DC-Coupled Output Settings A2536-003/01 August 2017 10-27 SEMCO Proprietary Information

10.4.8.7 Modulation Indexing Applicable to the Trellis FM demodulator format, Modulation Indexing provides for signal acquisition and lock when confronted with transmitter deviation that is drifting between +/- 20% of 0.7 modulation index (35% deviation). This equates to deviation drift between 0.6 and 0.8 modulation index. When in Auto, the receiver compensates for this drift. Manual allows the user to enter a fixed value. Figure 10-51 shows how to enable Modulation Indexing. The user clicks on the Mod Index box under Auto to enable Auto Mod Indexing. Clearing the Auto Mod Index box, clicking on Advanced Settings and then entering a value between 30% and 40% as shown enables Manual Mod Indexing. The value entered is indicated in a window on the DEMOD Control Window, just below Auto Mod Index as shown. 10.4.8.8 Data Quality Metric (DQM) Figure 10-51 Modulation Indexing Setup DQM is an estimate of the Bit Error Probability (BEP) of the demodulator s received signal. Data Quality Encapsulation (DQE) enables telemetry receivers to generate a serial data stream that includes a standardized measurement of the real-time probability of error for a grouping of bits. This process provides a standardized method for communicating data quality to Best Source Selectors. Additional technical information related to DQM and its application is provided in Section 6, paragraph 6.2.8.8. DQM setup, as described in subsequent paragraphs, addresses the following parameters: A. Enable Setting this control enables the operation of DQM/DQE. Operation is only valid in PCM/FM, SOQPSK and Multi-h CPM demodulation formats. B. Payload Length (Frame Size) Allows the user to specify the number of received data bits in a DQE frame. The DQM is calculated over these bits. The valid range is 1024 to 16384 bits, and the Frame Size value for a mission using DQM is pre-determined and known by the user. A2536-003/01 August 2017 10-28 SEMCO Proprietary Information

C. Frame Word A combination of the RSV & VER parameters of the DQE frame, the Frame Word is set as a hexadecimal value. Controls are provided to support any changes in the IRIG Standard and for test purposes. It should always remain set to 0x0000h in normal operation. Manual Mean and BEP Offset are factory-set calibration values that are locked out. Referring to Figure 10-52, the user clicks on the DQM window, which toggles ON/OFF. The user then clicks on Advanced Settings to access DQM Frame Size and DQM Frame Word. 10.4.8.9 Signal Degradation Indicator (SDI) Figure 10-52 DQM Setup SDI is used with external Best Source Selectors and measures symbol counts by counting the number of times the eye pattern exceeds an external count threshold, or falls to less than an internal count threshold. This Threshold Count is factory set at 30 and indicates the best BER. A more detailed discussion of SDI can be found in Section 6, paragraph 6.2.8.9 of this User s Guide. Figure 10-53 shows how to enable the SDI feature. The user clicks on the SDI button, which turns GREEN when enabled. When enabled, the SDI Count window appears as shown. Figure 10-53 SDI Selection A2536-003/01 August 2017 10-29 SEMCO Proprietary Information

10.4.8.10 Adaptive Equalization (AE) The AE feature mitigates RF multi-path that is present at the receiver s input and automatically adapts to time-varying properties of the RF signal. It can be used in FM, PSK and SOQPSK-TG demodulation modes and mitigates the effects of multipath propagation and Doppler spreading. Figure 10-54 illustrates AE selection. The user clicks on the Adaptive EQ window to toggle ON as shown. The user then clicks on Advanced Settings to access the AE settings. Advanced Settings Graphic For AE settings Not Available At time of User Guide Release 10.4.8.11 Space Time Coding (STC) Figure 10-54 AE Selection STC only applies to SOQPSK-TG modulation. STC is two parallel space-time coded bit streams (2 antennas) with a pilot sequence added to each bit stream at fixed bit intervals (or blocks). Phase-locked transmitters are modulated with these encoded/pilot-added streams. The receiver performs space-time decoding of this signal. Referring to Figure 10-55, the user selects SOQPSK-STC, and then clicks on Advanced Settings to access the STC settings as shown. Graphic For SOQPSK-STC Selection Not Available At time of User Guide Release Graphic For STC Advanced Settings Not Available At time of User Guide Release Figure 10-55 STC Selection A2536-003/01 August 2017 10-30 SEMCO Proprietary Information

10.4.8.12 Low Density Parity Check (LDPC) FEC Forward error correction is a way of adding additional information to a transmitted bit stream in order to decrease the required signal-to-noise ratio to the receiver for a given bit error rate. Low Density Parity Check (LDPC) is a block code of information bits that has parity added to them in order to correct for errors in the information bits. The term low-density means the parity check matrix contains mostly 0 s and relatively few 1 s. Six different LDPC codes with different coding rates (1/2, 2/3, 4/5) and information block sizes (1024 and 4096) are available. This FEC code can only used with SOQPSK-TG modulation. Figure 10-56 illustrates SOQPSK-LDPC selection. The user selects the SOQPSK-LDPC Demod Mode and then clicks on Advanced Settings to access the LDPC settings (Rate and Block Size) as shown. Graphic For SOQPSK-STC Selection Not Available At time of User Guide Release Graphic For STC Advanced Settings Not Available At time of User Guide Release Figure 10-56 LDPC Selection 10.4.8.13 Viterbi FEC Viterbi FEC is an algorithm used by the demodulator to recover a convolutional encoded signal. The rate and K factor available in the receiver is Rate 1/2 K=7. Figure 10-57 illustrates Viterbi FEC selection on the GUI. The user clicks on the arrow icon next to Viterbi, which accesses an ON/OFF pull-down menu as shown. Graphic For Viterbi Selection Not Available At time of User Guide Release Figure 10-57 Viterbi Selection A2536-003/01 August 2017 10-31 SEMCO Proprietary Information

10.4.8.14 Turbo Code FEC Turbo FEC applies to situations where data quality can be improved over bandwidth or latencyconstrained communication links in the presence of data-corrupting noise. Provided as a custom application based on customer specifications, Turbo codes provide very similar performance when compared to LDPC FEC. Figure 10-58 illustrates Viterbi FEC selection on the GUI. The user clicks on the arrow icon next to Viterbi, which accesses an ON/OFF pull-down menu as shown. Graphic For Turbo Selection Not Available At time of User Guide Release 10.4.8.15 I/Q Interleaving Figure 10-58 Turbo Code FEC Selection User-Selectable interleaving of analog I and Q baseband video outputs is available for QPSK and UQPSK demodulator formats. When in these formats, the user clicks on Advanced Settings, which accesses an I/Q Interleave window and provides for toggling ON/OFF as shown in Figure 10-59. Figure 10-59 I/Q Interleaving Selection A2536-003/01 August 2017 10-32 SEMCO Proprietary Information

10.5 Toolbar Features There are several Toolbar features that facilitate use of the receiver for mission support and post-mission analyses. These features are described in the following paragraphs. 10.5.1 Receiver Settings Receiver Settings include Tape Playback, 10 MHz Reference and AM Controls. These settings have been previously addressed in paragraph 10.2.15 (Tape Playback), paragraph 10.2.3 (10 MHz Reference) and paragraph 10.2.6 (AM Controls) and are not repeated here. 10.5.2 System Configuration System Configuration (System Config) addresses both the Naming Options feature and Slaving feature. The Naming Options feature has been previously addressed in paragraph 10.1.2 and is not repeated here. The Slaving feature provides for both Frequency and Diversity slaving of the receiver s 3 channels. Frequency slaving allows the user to slave all 3 Demodulator settings to each other. This facilitates Demodulator set-ups in that the user only has to enter the settings for one Demodulator, and the other 2 Demodulators are automatically set up with these same settings. CH1 and CH2 RF Tuner settings are still independently set in the Frequency Slaving mode. Diversity slaving provides for this same capability as it applies to Demodulators and RF Tuners. Figure 10-60 shows how to enable Frequency Slaving. The user clicks on System Config and then Frequency Diversity (Demods), which activates the SLAVING ON (Freq Diversity) indication as shown. Figure 10-60 also shows how to enable Diversity Slaving. The user clicks on System Config and then on Diversity (Tuners, Demods), which activates the SLAVING ON (Diversity) indication as shown. Figure 10-60 Slaving Feature A2536-003/01 August 2017 10-33 SEMCO Proprietary Information

10.5.3 Windows Windows settings include System Card Set, Bit Sync Card, AGC Data Logger and Receiver Map. Figure 10-61 depicts the System Card Set selection, which is a listing of the configuration (HW and SW) of all installed cards and modules. Figure 10-61 System Card Set Selection Figure 10-62 depicts the selection of an optional stand-alone Bit Synchronizer and access to the Bit Sync, Frame Sync and BERT setups, which are addressed in paragraph 10.6 of this User s Guide. The user clicks on Windows and then Bit Sync, which brings up the Bit Sync BERT Status Panel, with access to Setup 1, Setup 2 and BERT & FS as shown. Refer to paragraph 10.7 for detailed settings and setups. Figure 10-62 Bit Sync Selection Figure 10-63 shows how to access and set up the AGC Data Logger and System Parameters Logger. This feature provides the ability to time stamp and log both AGC output voltages and all receiver set-up parameters during a mission. A2536-003/01 August 2017 10-34 SEMCO Proprietary Information

The user clicks on AGC Data Logger and To File, which opens up the AGC Data Logger window. The user then clicks on Select File, chooses the file name and destination and clicks on Save. The file then populates the window under Selected File as shown. The user now clicks on the ON/OFF button below AGC Data Logger, which starts the AGC data logging. The user clicks on this button again to stop AGC Data Logging. System Parameters Logging is performed using the same setup sequence. Figure 10-63 AGC Data/System Parameters Logging Figure 10-64 shows the real-time AGC monitoring in Strip Chart format. This feature provides a running visual display during a mission. The user clicks on AGC Data Logger and Strip Chart (see Figure 10-63) to enable this feature. Controls on the Strip Chart Display include Start, Pause, Reset and Auto. All 3 channels are displayed. One channel is illustrated here. Figure 10-64 AGC Strip Chart Display A2536-003/01 August 2017 10-35 SEMCO Proprietary Information

Figure 10-65 illustrates the Receiver Map feature, which provides a visual display that guides the user through the signal flow and functionality of the receiver. The user clicks on Windows and then Receiver Map, which enables the Receiver Block Diagram as shown. Each time the user places the cursor over a particular receiver function or parameter, the Receiver Block Diagram will highlight and flash the particular receiver circuitry that is affected by this function or parameter. In the Figure 10-65 example, a change in the IF SAW filter bandwidth value is demonstrated. In this example, clicking on IFBW with the cursor highlights the correlating receiver SAW Filter circuitry and shows the signal flow Figure 10-65 Receiver Map Feature A2536-003/01 August 2017 10-36 SEMCO Proprietary Information

Figure 10-66 illustrates the Help feature. Clicking on Help provides access to a.pdf file of this User s Guide. Figure 10-65 Receiver Map Feature 10.6 Stand-Alone Bit Sync/Frame Sync/BERT Figure 10-66 Help Feature The multi-channel channel Bit Sync/Frame Sync/BERT option is available as an addition to the embedded bit syncs and de-randomizers in each of the demodulator channels. This option has userselectable internal (from each demodulator) and external (from rear panel) input switching, programmable Frame Sync, BERT and PN Generator. It can be used as an independent Bit Sync/Frame Sync/BERT or used in conjunction with each channel s demodulator output for TTL and RS422 bit sync/frame sync outputs, as well as BER loop testing of each receiver and combiner channel. The following paragraphs describe the setup windows that are available when this option is installed. 10.6.1 Bit Sync/Frame Sync/BERT Setup and Controls The user clicks on Bit Sync Card in the GUI Toolbar as shown in Figure 10-67 to access the Bit Sync/Frame Sync/BERT Status window. There are two bit synchronizers that accept data rates up to 40 Mbps. Bit error rates are measured on a single channel at any given time, in addition to the frame sync indication. Figure 10-67 Bit Sync/Frame Sync/BERT Window A2536-003/01 August 2017 10-37 SEMCO Proprietary Information

Referring to Figure 10-67, there are four tabs (Status, Setup 1, Setup 2, and BERT & FS. The Status window displays basic set up information for each channel as well as Phase Lock Loop (PLL), Frame Sync (FSYNC), and BERT lock indicators. There are no adjustable settings on this window. The user clicks on Setup 1 to access the Channel 1 Bit Synchronizer/Frame Synchronizer Control Window (Figure 10-68). This window allows the user to set the specific parameters for the Channel 1 Bit- Sync and/or Frame Sync. The third tab labeled Setup 2 is the Channel 2 Bit Synchronizer/Frame Synchronizer Control Window, with controls that are identical to the Channel 1 window. Figure 10-68 Bit Sync/Frame Sync Setup Window Referring to Figure 10-68, the user clicks on and sets up the following parameters: A. Rate (kbps) - Up to 40000 (40 Mbps) B. Format - NRZ-L, NRZ-M, NRZ-S, Bi-phase-L, Bi-phase-M, Bi-phase-S C. Loop BW - Percentage of the data rate (0.01%, 0.1%, 1.0%, 1.5%) D. Input Z - Selects high or low (Single Ended) input impedance E. Data Invert - Inverts the output data polarity F. Clock Invert - Inverts the output clock polarity G. Descramble - Enables the Descramble function H. AGC Enable - Enables AGC for low input signals I. Filtering - Enables input signal filtering based on bit rate J. FSYNC PAT - The selections available are four standard Barker codes. The user can select one of the standard predefined patterns or type in a user defined pattern. A2536-003/01 August 2017 10-38 SEMCO Proprietary Information

K. Sync Word Length - Changes automatically when the user selects a value in the FSYNC pattern box, but for a user-input pattern, the user needs to input the Sync word length. L. Bits/Word - Choose a standard predefined length of 8, 16, 32 or 64 or enter a user defined length. M. Words/Frame - Choose a standard predefined length of 512, 1024 or 2048 or enter a user defined length. N. FSYNC Thresh - Allows frame sync detection events with errors in the frame sync (threshold may be less than or equal to Sync Word length). The user clicks on BERT & FS to access the BERT/Frame Sync Window (Figure 10-69). This window allows the user to set the specific parameters for the Bit Error Rate Tester (BERT) and the encoder outputs. Figure 10-69 BERT & Frame Sync Setup Window Referring to Figure 10-69, the user clicks on and sets up the following parameters: B. BERT/Frame Source Selector - The BERT or frame sync detection will be performed on the channel selected in the pull down menu in the top left portion of the window below the BERT and FSYN buttons. The two selections available are EXT (1) and INT (2). The EXT (1) is an external input connector located on the rear panel of the chassis. This external input can accept an external baseband video signal from any external source, and the bit sync/frame sync/bert can now be used as a stand-alone device. Setup for this channel can be located in the Setup 1 control window. The INT (2) or internal input is fed directly from the receiver s demodulator. To select which video baseband signal is internally routed to the bit-sync, the user selects and configures Video 5 on the demodulator control panel. B. BERT/FSYN buttons - The ON/OFF buttons for the Bit Error Rate Tester and Frame Synchronizer are located in the upper left corner of the window. The user starts the BERT counters located to the right of the button by clicking the BERT function ON. Clicking on the FSYN button will engage the frame synchronizer feature. A2536-003/01 August 2017 10-39 SEMCO Proprietary Information