DMB 670 VHF Band III DAB-DMB Transmitter for Worldwide Digital Standards

Transcription

1 RADIO TRANSMISSION SYSTEMS DMB 670 VHF Band III DAB-DMB Transmitter for Worldwide Digital Standards

2 World-Class Value The DMB 670 VHF solid-state transmitter is designed to provide today s multimedia broadcaster with one transmitter platform capable of multiple modulation schemes. Incorporating field-proven DAB 665 multi-standard exciter, the DMB 670 provides world-class performance, reliability and quality. The DMB 670 was designed to leverage the DAB 665 exciter s market leadership position and complement it with a new line of amplifiers based on the successful Platinum Z line of FM transmitters. The DAB 665 low-power unit contains complete DAB/DMB signal processing according to the EUREKA Project 147 specifications from the ETI input to the RF output. The low-power unit contains the integrated transmitter control and monitoring system and communicates to the power amplifier bays in the system via RS-485. The amplifier bays hold a range of RF modules for pre-filter powers from 40 W to 10 kw using straightforward, reliable construction for simple operation and maintenance. Launching a new digital service is more than a financial investment. In many cases, it represents new and unfamiliar technology. Making a safe investment requires a partner with technical expertise and financial stability; Harris is uniquely positioned to provide both. As the digital transmission leader, Harris has developed a solid core competency backed by years of experience in the technical areas essential for maximum digital performance. Harris has put that expertise to the test by providing transmission solutions for major DAB and DMB network rollouts and trials since the beginning doing it longer than any other transmitter supplier. When it is time to implement, you can count on Harris for field-proven systems and a range of support options from standard 24/7 telephone technical assistance and parts, to installations, training, full system design and field maintenance contracts. DMB 670 Features Best-in-class power efficiency lowest operating costs Extremely high power density for a compact, lightweight, space-saving design Legendary Reliability Cost-effective reliable construction Digital power levels from 40 W up to 10 kw Incorporates field-proven DAB 665 multi-standard exciter All-digital linear and nonlinear precorrection Fully broadband modules MHz 1:1 PA module to power supply redundancy "Hot-Pluggable" linear RF amplifier modules "Hot-Pluggable" auto-ranging power supplies Automatic restart after AC mains interruption; returns to previous operational mode Straightforward control, monitoring and in-depth diagnostics via easy-to-use front panel control Optional Web-enabled remote GUI interface DMB 670 transmitters are more than a compact platform. The entire line leverages the power supply, cooling, control and RF module systems of the Platinum Z and ZX series the world s most popular solid-state FM transmitters. Combining unmatched Harris expertise in linear and digital systems with a compact, straightforward architecture, DMB 670 transmitters offer unsurpassed reliability, performance and key digital technology that cut acquisition and operating costs significantly.

3 DMB 670 Benefits Maximum Efficiency: The DMB 670 is the most efficient Band III transmitter available today about twice as efficient as other products on the market. Estimated annual savings of up to $10,000 on a 2 kw system, based on $0.15/kWh. Reduces the total cost of ownership $100,000 over the first 10 years of operation. Compact Footprint: The most compact DAB/DMB transmitter on the market 78 percent size reduction at 2 kw. Ideally suited to fit in crowded, shared transmitter sites, the DMB 670 reduces the space required in the facility, simplifies installation, lowers shipping costs and allows for easier maintenance. Lightweight Design: The DMB 670 is not only smaller, but it's also lighter. This reduces shipping and material handling costs for a lower total cost of ownership. High Power Elegant Simplicity: The DMB 670 achieves marketleading power levels (up to 10 kw) without the need for complex liquid cooling systems. Coupled with a reliable distributed control architecture, the DMB 670 provides for outstanding reliability, soft failure operation and simple serviceability. Improved Up Time: Hot-pluggable redundant power amplifier (PA) and universal power supply (PS) modules make on-air servicing a breeze and eliminate costly service interruptions. Reduced Service Costs: Lightweight and universal power amplifier modules (broadband from 168 to 242 MHz kg) and power supply modules (auto-ranging VAC, Hz kg) facilitate overnight/same-day shipment from centralized depot for simplified and cost-effective spares holding. The use of lightweight modules virtually eliminates any two-person lift requirements for routine maintenance and troubleshooting, resulting in considerable savings. Smooth Upgradeability: The DMB 670 features the world-class DAB 665 exciter and control platform, allowing existing users to upgrade seamlessly to the new platform. This virtually eliminates switching costs such as training, sparing and programming of network control and monitoring. Field Serviceable: The system reduces maintenance costs by supporting simple replacement of pre-tuned amplifier pallet, eliminating the need for complex tuning after FET replacement. Common Parts: The complete DMB 670 line utilizes the same major parts from the highest power, air-cooled transmitter to the compact, low-power systems. This consolidation of parts makes sparing simple and straightforward. Technology Leadership 1992 Delivery of first DAB transmitter to Germany, based on television design 1994 Launch of second-generation DAB transmitter system 1996 Third-generation DAB transmitters delivered 1998 Introduction of the DAB 660 series, including integrated COFDM encoder, digital pre-corrector, GPS receiver for SFN operation 1999 Innovative features introduced, such as integrated satellite receiver for ETI signals, seamless ETI input switching 2001 Platform extended with new features integrated UPS, new cooling concept for low-power system 2003 Launch of DAB 665 transmitter series offers TCP/IP-based remote control and monitoring, N+1 capability and a new encoder 2007 Launch of DMB 670 transmitter series with breakthrough design offers the most compact, power-efficient product available with extensive modularity for low operating costs 2008 DMB 670 and the associated low-power unit include RoHS compliance, new modulator

4 Global Monitor and Control The DMB 670 transmitter series uses a central control system housed in the DAB 665 low-power stage (exciter/drive unit). The main controller communicates with the modules of the low-power stage through an internal I2C-bus and to one or more external high-power amplifier bays (PA modules) via an RS-485 connection. A liquid crystal control screen allows easy review of all operational parameters and easy diagnosis of any equipment problems. In addition to local control, options allow the DMB 670 transmitter to be controlled from anywhere in the world via RS- 232 or TCP/IP via a telecom or network connection with password protection. Menu structure The control menu of the DAB 670 transmitter series user interface contains the following functional blocks: Home: New addition that features key transmitter readings, FWD and REV power and system faults Signal: Enables adjustment of all parameters for signal processing (input feed, preprocessing ETI and FFT unit, precorrection, reference frequency) History: Maintains a list of errors and operation mode changes and allows storage of history data Preference: Stores the present equipment configuration files or downloads a predefined equipment configuration Amplifier: Adjustment of the operating mode, querying operating parameters of the highpower amplifier bays Installation: Configuration of installation settings like power class, backup signal selection Miscellaneous: Includes measuring units, CPU data, power supply parameters, operating temperatures Log File: Contains the network log-in/log-out log Help: Help with navigation and problem solving Remote Communication The following additional remote interfaces are optionally available: The graphical user interface (GUI) permits entry of all operation parameters. Simple reports and important measured values can be queried and transmitter operation problems are clearly displayed. Ethernet network connection RJ45 (10/100BaseT) with TCP/IP protocol RS232 for modem/pc connection with TCP/IP protocol (low-power stage front panel and rear panel) Remote alarms are generated automatically in the event of a fault and sent via GSM (SMS format) or modem (ASCII format). If a network connection is present, the alarms can be sent by SNMP or . Contacts of the parallel interface can be arbitrarily assigned for special needs RS232 as mod-bus (ASCII protocol), or bit-bus-iec864-2 are available on request To support greater redundancy, the TCM 8600 Terrestrial Central Monitoring unit supports a range of back-up options. In dual-drive systems, the TCM 8600 monitors the low-power unit and switches control and RF feeds. In 1+1 and full N+1 installations, the TCM 8600 monitors each transmitter level system and controls RF switching. 1+1 Configuration Dual Drive Configuration

5 DMB 670 Front View Power Supplies Auto-ranging, hot-pluggable power supplies feature automatic regulation to smooth mains fluctuation. Redundant supplies keep transmitter on air in case of a supply failure. Transmitter Interface The transmitter interface provides amplifier bay local protection, control & monitoring interconnect to the low-power unit via RS- 485 on the back panel. DMB 670 Rear View RF Power Module Each hot-pluggable module holds two linear power amplifier pallets, each producing 175 watts of COFDM. Hinged Front Panel Hinged front panel folds down to provide access to all RF and power supply modules. Integrated, removable air filter uses washable material for simple servicing. Dual Power Connections Each DMB 670 offers multiple CE compliant power inputs to allow distributed feeds for maximum redundancy and installation flexibility. RF Connections Each DMB 670 transmitter has a main RF output, an RF input from the low-power unit, and a sample for test use. QPSK Receiver The optional QPSK-receiver provides a highquality DVB-S satellite receiver that outputs a standard ETI-signal. Complies with EN , EN and supports ETI- Signal (G703) via PID-filtering/FIFO and HDB3-coding. System CPU The CPU contains the central transmitter control and the optional Web interface. The system communication is based on an I2C-bus and RS 485. Low Power Unit Front Panel Control Control and monitoring of the transmitter is accomplished via the key pad and LCD display on the low power unit. Simple menus allow for access to operational and setup adjustments. The home page is the default display. Low-Power Amplifier Linear 200 mw or 40 W output for direct operation or as the driver. COFDM-modulator Provides direct modulation (no IF), features noiseless and electronically tunable synthesizer and controls the RF output for a constant level. Digital I/Q Precorrection Adapts the digital signal to counter the nonlinear characteristic of the PA the sideband signals are optimized with digital FIR filtering dynamic precorrection adjusts for changes in the output power. Frequency Processing Provides internal reference frequencies 1 Hz and 10 MHz plus 1 PPS input from external GPS receiver or the optional internal GPS receiver. COFDM Encoder Processes the ETI-signal to ETS specifications for modes 1-4 and supports standard ETI-NA (NI) with seamless switch-over & quality check - 12-Bit I/Q-resolution - Time Stamp Processing - Dynamic group delay - Integrated CRC check with adjustable alarm thresholds - Mode selection for Local/Automatic/Test - Automatic NI/NA input signal detection.

6 DMB 670 Configuration Each DMB 670 transmitter combines a low-power unit and one or more amplifier bays, each with various configurations of PA modules to achieve the rated power. The amplifier bays contain several major systems: Power Amplifier (PA) The hot-pluggable module features a pair of broadband ( MHz) RF power amplifiers that require no user adjustments. Each amplifier can be easily replaced with a pre-tuned pallet, eliminating the need for optimization in the field. The PA modules are identical and fully interchangeable among all power classes in the DMB 670 transmitter family, regardless of configuration. Power Supply (PS) The hot-pluggable module is a 1200 W, 48 V power supply with a.98 power factor and mains input range of V. The PS interface provides on/off functionality to the power supplies, a fan tachometer alarm and redundant feed to the cooling system. Each module also has +5 V output to redundantly drive the low-voltage control circuits. Cooling System The air-cooling system includes internal redundant blowers that pull cool air from the front through a removable filter, as well as exhausts in the rear. Systems integrated in Harris cabinets feature top exhaust to support ducting and can optionally have ducted air input plenum to permit top, bottom or rear air input. Typical system block diagram Control System The main system control is located in the low-power unit and DMB shown communicates with each amplifier bay, each of which has independent protection and control capabilities. Each PA module has dedicated control and monitoring to support on/off functionality and alarms for reflected power, temperature and current overloads. Output Filter Optionally used to ensure mask compliance. These filters are compact, temperature-stable and provide low insertion loss. The noncritical spectrum mask filter has a six-circuit bandpass, while the critical mask filter requires the addition of two traps. DMB DMB DMB DMB DMB DMB DMB DMB Optional rack integration is available for DMB , 250, 500, 1000 & 2000 DMB 670 DMB 670 DMB 670 DMB 670 DMB 670 DMB 670 DMB 670 DMB Power before 30 to to to to 1,000 to 2,000 to 3,000 to 4,000 to filter-watts 1,200 2,500 5,000 7,500 10,000 Output N female N female N female DIN 7-16 DIN /8 EIA 1-5/8 EIA 3-1/8 EIA Connector Rack Space 11 RU 11 RU 11 RU 22 RU 22 RU 1 Cabinet 2 Cabinets 2 Cabinets PA Modules PS Modules

7 DMB 670 Specifications General DAB RMS Power Output Range: DMB : 35 W 160 W DMB : 125 W 315 W DMB : 250 W 630 W DMB : 500 W 1250 W DMB : 1000 W 2500 W DMB : 2000 W 5000 W DMB : 3000 W 7500 W DMB : 4000 W W Excitation: DMB /250: DAB-665/0.2T-K06 DMB / /8000: DAB-665/40T-E06 Modulation Type: Orthogonal frequency division multiplexing. (OFDM) ETSI TR Frequency Range: 168 MHz to 242 MHz, in 8 khz increments. Frequency Stability: (without ext. reference): < 5 x per day (OXCO aging) Power Stability: ± 0.25 db VSWR: Protected against open or short circuit, all phase angles. Capable of operation into infinite VSWR with user-adjustable foldback threshold. Factory pre-set to 4% of nominal nameplate power (VSWR = 1.5:1). Harmonic / Spurious Output: Complies with EN when used in conjunction with filter having following attenuation specifications: Critical mask: fc +/- < 768 khz: < 1.0 db fc +/- 970 khz: > 15 db fc +/ MHz: > 45 db fc +/- > 3 MHz: > 45 db fc +/- > 10 MHz: > 50 db Non-critical mask: fc +/- < 768 khz: < 1.0 db fc +/- 970 khz: > 0 db fc +/ MHz: > 15 db fc +/- > 3 MHz: > 45 db fc +/- > 10 MHz: > 50 db Shoulder before filter: 35 db min., >36-40 db typical (compensated) AC MAINS AC Mains Requirement: DMB : VAC, Hz, dual IEC C20 inlets. DMB : 200 V-264 VAC Hz, triple IEC C20 inlets for each 1000 / 2000 W chassis. Configurable on-site for single or three-phase connection: VAC single phase, VAC delta, VAC wye, or VAC wye. Optional in-rack AC distribution chassis provides individual circuit breaker protection for each AC input. Power Consumption: (including exciter, at maximum before-filter power level) DMB : 1000 W max; 800 W typical. DMB : 1500 W max; 1300 W typical. DMB : 2500 W max; 2225 W typical. DMB : 4500 W max; 4100 W typical. DMB : 8500 W max; 7850 W typical. DMB : W max; W typical. DMB : W max; W typical. DMB : W max; W typical. Power Factor (displacement): 0.98 typical. ENVIRONMENTAL Altitude: 3000 m elevation above mean sea level. Ambient Temperature Range: 0-50 C at sea level, upper limit derated 2 C per 300 m elevation AMSL. Humidity: 95%, non-condensing. MECHANICAL Dimensions: Standard EIA rack 48.3 cm (19 ); 1RU = 4.45 cm DMB : 5 RU amp + 6 RU exciter, 60 cm depth DMB : 5 RU amp + 6 RU exciter, 60 cm depth DMB : 5 RU amp + 6 RU exciter, 60 cm depth DMB : 16 RU amp + 6 RU exciter, 62 cm depth DMB : 16 RU amp + 6 RU exciter, 62 cm depth DMB : 44 RU rack, 80 cm depth DMB : 2x 44 RU rack, 80 cm depth DMB : 2x 44 RU rack, 80 cm depth Weight, Exciter/Low Power Unit: DAB-665/40T: 30 kg approx. Weight, Amplifier Chassis (all modules installed): DMB : 25 kg approx. DMB : 35 kg approx. DMB : 35 kg approx. DMB : 80 kg approx. DMB : 90 kg approx. Weight, Transmitter (all modules installed): DMB : 240 kg approx. DMB : 330 kg approx. DMB : 480 kg approx. Air Cooling: Air input with built-in filter at front. Air exhaust with built-in DC fans at rear. Ducted air exhaust and/or input available as option. DMB : 6 m3/min. DMB : 6 m3/min. DMB : 12 m3/min. DMB : 34 m3/min. DMB : 34 m3/min. DMB : 68 m3/min. DMB : 102 m3/min. DMB : 136 m3/min. INPUT/OUTPUT CONNECTIONS ETI Inputs/Outputs: BNC-female 75 ohm. 3x ETI(NI, G703) or ETI(NI, G703) + 2x ETI(NA, G704) or 2x ETI(NA, G704) resp. 2 x ETI(NI, G703) seamless input signal switch-over automatic. ETI(NI) select Mbit/s, unbalanced / balanced with optional 2 MBit adaptor. QPSK Input: 50 ohm, type SMA-female, MHz, -65 to -25 dbm typ. 55 MHz BW, 1-45 MSymb/s, DVB-S QPSK acc. to EN LNB supply: V (max. 350 ma) (vertical) V (max. 350 ma) (horiz.) GPS Input: SMA-female, 50 ohm, GHz, -130 to -100 dbm. (+5 VDC(@100 ma max output for active antenna) 1 pps Input: BNC-female, 75 ohm, TTL level Reference Frequency Input: SMA-female, 50 ohm, 0.1/0.5/1/2.048/5/10 MHz, -7 to + 15 dbm RF Output Connector: DMB : Type N female, 50 ohms DMB : Type N female, 50 ohms DMB : Type N female, 50 ohms DMB : DIN 7-16 male, 50 ohms DMB : DIN 7-16 male, 50 ohms DMB : EIA 1-5/8 flange, 50 ohms DMB : EIA 1-5/8 flange, 50 ohms DMB : EIA 3-1/8 flange, 50 ohms REMOTE CONTROL Parallel REMOTE: DB37-female Relay Contacts: VDC Digital Inputs (TTL level): pulse duration 100 ms or permanent signal RS232 (TCP-IP): DB9 female Mod-Bus (RS232): DB9 female Bit-Bus in/out (RS485) 3): DB9 male/female Ethernet/SNMP (optional): RJ45, twisted pair. For SNMP control plus SNMP & alarming MONITORING OUTPUTS - SAT-IF - ETI OUT - ETI (NI) - ETI-frame - COFDM-frame - LO - RF monitor (low power stage) - 1 Hz (1 pps signal) - Reference frequency 10 MHz - Incident and reflected signal Tx output (optional) COMPLIANCE RoHS 2002/95/EC Compliant: Yes R&TTE 1999/5/EC Compliant: Yes 1 Power ratings are at amplifier output connector/before DAB mask filter W chassis destined for installation within CE area have triple PowerCon NAC3FCA connectors. 3 All figures for DMB models are for basic exciter & power amp combination without optional rack pre-integration. All figures for DMB models include EIA rack. Specifications are subject to change without notice.

8 ONE Company for Workflow Solutions Throughout the Broadcast Chain Harris is the ONE company delivering interoperable workflow solutions across the entire broadcast delivery chain providing today s broadcaster with a single, integrated approach to capitalize on the benefits of IT and mobile applications. By providing unparalleled interoperability across our product portfolio, Harris is able to offer customers integrated solutions that improve workflows, save money, enable new revenue streams and provide a migration path to emerging media business models. To meet the evolving needs of broadcast, distribution, government agencies and entertainment businesses, Harris is the ONE answer for change. Service And Support At Harris, we are committed to customer service excellence. It is our goal to provide the highest level of support by applying a simple rule: We take ownership of helping our customers succeed. Our support teams consist of innovative technical experts who support all situations regarding product performance, integration and operational processing. We are adept at providing proven solutions, making workflows better and ensuring reliability of the product and system. At Harris, our experienced and dedicated teams stand ready to help you meet your goals for premium product performance, 100% up-time and reduced maintenance investment. Warranty Because we want to assure you that Harris stands beside its products and system solutions, our products carry a standard set of warranty services, which are competitive with and in some cases outperform others in the industry. Service Packages We offer value-add services that allow you to customize the level of services you need in meeting mission-critical performance levels. Our service package options offer many ways to upgrade your standard warranty by choosing the All-Inclusive OnePak, or by selecting individual services from our extensive portfolio. Our service and support advisors can assist in the selection of the individual services that best suit your requirements. United States Canada and Latin America Europe, Middle East and Africa +44 (0) Asia, Pacific Rim For more information please visit Harris is a registered trademark of Harris Corporation. Trademarks and tradenames are the property of their respective companies. Broadcast Communications 4393 Digital Way Mason, OH USA Tel: 1 (513) Harris Corporation BR_DMB670_0308