FCC PART 22H, PART 24E MEASUREMENT AND TEST REPORT. Shanghai AirM2M Communication Technology Co., Ltd

Transcription

1 FCC PART 22H, PART 24E MEASUREMENT AND TEST REPORT For Shanghai AirM2M Communication Technology Co., Ltd No. 666.East beijing road, Shanghai, China FCC ID: 2AEGG-AIR208 Report Type: Original Report Product Type: GSM/GPRS Module Test Engineer: Mark Yu Report Number: RSHA A Report Date: Reviewed By: Prepared By: Oscar Ye RF Leader Bay Area Compliance Laboratories Corp. (Kunshan) No.248 Chenghu Road,Kunshan,Jiangsu province,china Tel: Fax: Note: This test report is prepared for the customer shown above and for the device described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0.

2 TABLE OF CONTENTS GENERAL INFORMATION... 3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT)... 3 OBJECTIVE... 3 RELATED SUBMITTAL(S)/GRANT(S)... 3 TEST METHODOLOGY... 3 MEASUREMENT UNCERTAINTY... 4 TEST FACILITY... 4 SYSTEM TEST CONFIGURATION... 5 JUSTIFICATION... 5 CHANNEL LIST... 5 EQUIPMENT MODIFICATIONS... 5 SUPPORT EQUIPMENT LIST AND DETAILS... 5 EXTERNAL I/O CABLE... 5 BLOCK DIAGRAM OF TEST SETUP... 6 SUMMARY OF TEST RESULTS... 7 TEST EQUIPMENT LIST... 8 FCC & MAXIMUM PERMISSIBLE EXPOSURE (MPE) APPLICABLE STANDARD CALCULATED FORMULARY: CALCULATED DATA: FCC MODULATION CHARACTERISTIC FCC ; (A); (C) - RF OUTPUT POWER APPLICABLE STANDARDS TEST PROCEDURE TEST DATA FCC , , & OCCUPIED BANDWIDTH APPLICABLE STANDARDS TEST PROCEDURE TEST DATA FCC ; (A); (A) - SPURIOUS EMISSIONS AT ANTENNA TERMINALS APPLICABLE STANDARDS TEST PROCEDURE TEST DATA FCC ; (A); (A) - SPURIOUS RADIATED EMISSIONS APPLICABLE STANDARDS TEST PROCEDURE TEST DATA FCC (A); (A) - BAND EDGES APPLICABLE STANDARDS TEST PROCEDURE TEST DATA FCC ; ; FREQUENCY STABILITY APPLICABLE STANDARDS TEST PROCEDURE TEST DATA FCC Part 22H/24E Page 2 of 28

3 GENERAL INFORMATION Product Description for Equipment under Test (EUT) Applicant Tested Model Product Type Dimension Shanghai AirM2M Communication Technology Co., Ltd Air208 GSM/GPRS Module 17.6mm(L)* 15.7mm(W)* 2.3mm(H) Power Supply DC 3.8V *All measurement and test data in this report was gathered from production sample serial number: (Assigned by the BACL. The EUT supplied by the applicant was received on ) Objective This type approval report is prepared on behalf of Shanghai AirM2M Communication Technology Co., Ltd in accordance with Part 2, Part 22-Subpart H and Part 24-Subpart E of the Federal Communication Commission s rules. The objective is to determine the compliance of EUT with FCC rules for output power, modulation characteristic, occupied bandwidth, and spurious emission at antenna terminal, spurious radiated emission, frequency stability, and band edge. Related Submittal(s)/Grant(s) No Related Submittal(s)/Grant(s). Test Methodology All tests and measurements indicated in this document were performed in accordance with the Code of Federal Regulations Title 47 Part 2, Sub-Part J as well as the following parts: Part 22 Subpart H - Public Mobile Services Part 24 Subpart E - Personal Communication Services Applicable Standards: TIA/EIA 603-D. All radiated and conducted emissions measurements were performed at Bay Area Compliance Laboratories Corp. (Kunshan). The radiated testing was performed at an antenna-to-eut distance of 3 meters. FCC Part 22H/24E Page 3 of 28

4 Measurement Uncertainty Item Uncertainty AC Power Lines Conducted Emissions 3.19dB RF conducted test with spectrum 0.9dB RF Output Power with Power meter 0.5dB 30MHz~1GHz 5.91dB Radiated emission 1GHz~6GHz 4.68dB 6GHz~18GHz 4.92dB 18GHz~40GHz 5.21dB Occupied Bandwidth 0.5kHz Temperature 1.0 Humidity 6% Test Facility The test site used by Bay Area Compliance Laboratories Corp. (Kunshan) to collect test data is located on the No.248 Chenghu Road, Kunshan, Jiangsu province, China. Bay Area Compliance Laboratories Corp. (Kunshan) Lab is accredited to ISO/IEC by A2LA (Lab code: ) and the FCC designation No. CN1185 under the FCC KDB D01. The facility also complies with the radiated and AC line conducted test site criteria set forth in ANSI C FCC Part 22H/24E Page 4 of 28

5 SYSTEM TEST CONFIGURATION Justification The EUT was configured for testing according to TIA/EIA-603-D. The final qualification test was performed with the EUT operating at normal mode. Channel List Mode Channel Frequency Low GSM/GPRS 850 Middle High Low PCS/GPRS 1900 Middle High Equipment Modifications No modifications were made to the EUT. Support Equipment List and Details Manufacturer Description Model Serial Number Hezhou Development Board S7 / / Antenna / / DELL Notebook GX620 D DELL Adapter LA65NS0-00 DF263 External I/O Cable Cable Description Shielding Type Length (m) From Port To Serial Cable Unshielding 0.8 Development Board Notebook FCC Part 22H/24E Page 5 of 28

6 Block Diagram of Test Setup For Radiated Emissions(Below 1GHz&Above 1GHz): Turntable 2m Diameter CMU 200 Antenna EUT Notebook Adapter Development Board 1.0 Meter Non-Conductive Table 150cm above Ground Plane 1.5 Meter FCC Part 22H/24E Page 6 of 28

7 SUMMARY OF TEST RESULTS FCC Rules Description of Test Result , Maximum Permissible Exposure (MPE) Compliant ; (a); (c) RF Output Power Compliant Modulation Characteristics Not Applicable ; ; ; ; (a); (a) ; (a); (a) (a); (a) ; ; Occupied Bandwidth Spurious Emissions at Antenna Terminal Spurious Radiated Emissions Band Edge Frequency Stability Compliant Compliant Compliant Compliant Compliant FCC Part 22H/24E Page 7 of 28

8 TEST EQUIPMENT LIST Manufacturer Description Model Serial Number Radiated Emission Test(Chamber 1#) Calibration Date Calibration Due Date Rohde & Schwarz EMI Test Receiver ESCI HP Signal Generator HP 8341B 2624A Sunol Sciences Broadband Antenna JB3 A Sunol Sciences Broadband Antenna JB3 A Sonoma Instrunent Pre-amplifier 310N Rohde & Schwarz Auto test Software EMC / / MICRO-COAX Coaxial Cable Cable MICRO-COAX Coaxial Cable Cable MICRO-COAX Coaxial Cable Cable MICRO-COAX Coaxial Cable Cable Rohde & Schwarz UNIVERSAL RADIO COMMUNICATION TESTER CMU Radiated Emission Test(Chamber 2#) HP Signal Generator HP 8341B 2624A Rohde & Schwarz EMI Test Receiver ESU ETS-LINDGREN Horn Antenna ETS-LINDGREN Horn Antenna ETS-LINDGREN Horn Antenna ETS-LINDGREN Horn Antenna Narda Pre-amplifier AFS Heatsink Required Amplifier QLW J Rohde & Schwarz Auto test Software EMC / / MICRO-COAX Coaxial Cable Cable MICRO-COAX Coaxial Cable Cable MICRO-COAX Coaxial Cable Cable MICRO-COAX Coaxial Cable Cable MICRO-COAX Coaxial Cable Cable Rohde & Schwarz UNIVERSAL RADIO COMMUNICATION TESTER CMU FCC Part 22H/24E Page 8 of 28

9 Manufacturer Description Model RF Conducted Test Serial Number Calibration Date Calibration Due Date Rohde & Schwarz Signal Analyzer FSIQ / Rohde & Schwarz BACL EAST UNIVERSAL RADIO COMMUNICATION TESTER Temperature & Humidity Chamber Regulated DC Power Supply CMU BTH MCH-303D-II Hezhou RF Cable / / Each Time / * Statement of Traceability: Bay Area Compliance Laboratories Corp. (Kunshan) attests that all calibrations have been performed in accordance to requirements that traceable to National Primary Standards and International System of Units (SI). FCC Part 22H/24E Page 9 of 28

10 FCC & MAXIMUM PERMISSIBLE EXPOSURE (MPE) Applicable Standard According to subpart (i)and subpart , systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission s guidelines. Limits for Maximum Permissible Exposure (MPE) ( , ) (B) Limits for General Population/Uncontrolled Exposure Frequency Range Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mw/cm 2 ) Averaging Time (minutes) *(100) /f 2.19/f *(180/f²) / / f/ ,000 / / f = frequency in MHz; * = Plane-wave equivalent power density; According to and RF exposure is calculated. Calculated Formulary: Predication of MPE limit at a given distance S = PG/4πR² = power density (in appropriate units, e.g. mw/cm 2 ); P = power input to the antenna (in appropriate units, e.g., mw); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Calculated Data: Calculation maximum antenna gain based on ERP/EIRP Mode Max Tune-up power ERP/EIRP Limit Max Antenna Gain (dbi) GSM 850/ GPRS GSM 1900/ GPRS FCC Part 22H/24E Page 10 of 28

11 Calculation maximum antenna gain based on MPE Mode GSM850/ GPRS 850 GSM1900/ GPRS1900 Frequency Range MPE Limit (mw/cm 2 ) Tune-up Power Source Based Time Average Power Evaluation Distance (cm) Antenna Gain (mw) (dbi) (numeric) Power Density (mw/cm 2 ) Note: The target output power: GSM 850: 32.5±0.5dBm, Maximum power 33dBm, Max Average Time-base power 24dBm; GSM 1900: 29±1dBm, Maximum power 30dBm, Max Average Time-base power 21dBm; GPRS 850: 1 slot 32.5±0.5dBm, 2 slots 31.5±0.5dBm, 3 slots 30.5±0.5dBm, 4 slots 29.5±0.5dBm Max Average Time-base power 27dBm; GPRS 1900: 1 slot 29±1dBm, 2slots 28±1dBm, 3 slots 27.5±0.5dBm, 4 slots 27.5±0.5dBm Max Average Time-base power 25dBm. Number of Time slot Duty Cycle 1:8 1:4 1:2.67 1:2 Time based Ave. power compared to slotted Ave. power -9 db -6 db db -3 db Mode Max Allow Antenna Gain (dbi) GSM 850/ GPRS GSM 1900/ GPRS Result: To meet RF exposure & ERP/ERIP, the maximum net gain of antennas allowed are GSM 850/GPRS 850, 3.00 GSM 1900/GPRS The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. FCC Part 22H/24E Page 11 of 28

12 FCC MODULATION CHARACTERISTIC According to FCC (d), Part 22H & 24E, there is no specific requirement for digital modulation, therefore modulation characteristic is not presented. FCC Part 22H/24E Page 12 of 28

13 FCC ; (a); (c) - RF OUTPUT POWER Applicable Standards According to FCC and (a), the ERP of mobile transmitters and auxiliary test transmitters must not exceed 7 watts (38.45dBm). According to FCC and (c), mobile and portable stations are limited to 2 watts (33dBm) EIRP and the equipment must employ a means for limiting power to the minimum necessary for successful communications.. According to FCC (d), the peak-to-average ratio (PAR) of the transmission must not exceed 13 db. Test Procedure Conducted method: The RF output of the transmitter was connected to the CMU200 through sufficient attenuation. EUT Attenuator CMU200 Radiated Output Power: The measurements procedures specified in ANSI/TIA-603-D were applied. a) Connect the equipment as illustrated. Mount the equipment with the manufacturer specified antenna in a vertical orientation on a manufacturer specified mounting surface located on a non-conducting rotating platform of a RF anechoic chamber (preferred) or a standard radiation site. b) Key the transmitter, then rotate the EUT 360o azimuthally and record spectrum analyzer power level (LVL) measurements at angular increments that are sufficiently small to permit resolution of all peaks. If a standard radiation test site is used, raise and lower the test antenna to obtain a maximum reading at each angular increment. (Note: several batteries may be needed to offset the effect of battery voltage droop, which should not exceed 5% of the manufactured specified battery voltage during transmission). c) Replace the transmitter under test with a vertically polarized half-wave dipole (or an antenna whose gain is known relative to an ideal half-wave dipole). The center of the antenna should be at the same location as the center of the antenna under test. d) Connect the antenna to a signal generator with a known output power and record the path loss (in db) as LOSS. If a standard radiation test site is used,raise and lower the test antenna to obtain a maximum reading. LOSS = Generator Output Power Analyzer reading e) Determine the effective radiated output power at each angular position from the readings in steps b) and d) using the following equation: ERP = LVL + LOSS (db) f) The maximum ERP is the maximum value determined in the preceding step. (Note: Effective Isotropic Radiated Power (EIRP) can be computed using the following: EIRP (dbm ) = ERP (db.) FCC Part 22H/24E Page 13 of 28

14 Test Data Environmental Conditions Temperature: 23.2 Relative Humidity: 50 % ATM Pressure: 101.1kPa The testing was performed by Mark Yu on Conducted Power: GSM 850 Band Mode GSM Mode GPRS Channel Channel Frequency AverageOutput Power Limit Frequency AverageOutput Power 1 slot 2 slots 3 slot 4 slots Limit PCS 1900 Band Mode GSM Mode GPRS Channel Channel Frequency AverageOutput Power Limit Frequency Average Output Power 1 slot 2 slots 3 slot 4 slots Limit FCC Part 22H/24E Page 14 of 28

15 Peak-to-average ratio (PAR): PCS 1900 Band Mode Channel PAR (db) Limit (db) Low GSM Middle High Radiated Power: Frequency Receiver Reading (dbμv) Turntable Angle Degree Rx Antenna Height (cm) Polar (H/V) GSM Mode Submitted Level Substituted Cable loss (db) GSM850, Middle Channel (ERP) Antenna Gain (dbd/dbi) Absolute Level Limit Margin (db) H V PCS 1900, Middle Channel (EIRP) H V Note: All above data were tested with no amplifier. Absolute Level = Submitted Level - Cable loss + Antenna Gain Margin = Limit- Absolute Level FCC Part 22H/24E Page 15 of 28

16 FCC , , & OCCUPIED BANDWIDTH Applicable Standards FCC , , & Test Procedure The RF output of the transmitter was connected to the simulator and the spectrum analyzer through sufficient attenuation. The resolution bandwidth of the spectrum analyzer was set at 5 khz (Cellular /PCS) & 100 khz (WCDMA), and the 26 db & 99% bandwidth was recorded. EUT Splitter Signal Analyzer CMU200 Test Data Environmental Conditions Temperature: 23.2 Relative Humidity: 50 % ATM Pressure: 101.1kPa The testing was performed by Mark Yu on Test Result: Compliant. EUT operation mode: Transmitting Mode Frequency GSM 850 Band 26 db Emission Bandwidth 99% Occupied Bandwidth GSM (GMSK) Mode Frequency PCS 1900 Band 26 db Emission Bandwidth 99% Occupied Bandwidth GSM (GMSK) FCC Part 22H/24E Page 16 of 28

17 GSM 850 Band 99% Occupied & 26 db Emissions Bandwidth for GSM (GMSK) Mode Delta 1 [T1] RBW 5 khz RF Att 40 db Ref Lvl 0.01 db VBW 10 khz 36.5 dbm khz SWT 100 ms Unit dbm db Offset 1 [T1] 1.60 dbm A 30 D dbm MHz 1 [T1] 0.01 db khz T1 T2 OPB khz T1 [T1] dbm MHz 1 1 T2 [T1] dbm 1MAX 1MA D dbm MHz Center MHz Date: 29.MAR :15: khz/ Span 1 MHz PCS 1900Band 99% Occupied & 26 db Emissions Bandwidth for GSM (GMSK) Mode Delta 1 [T1] RBW 5 khz RF Att 40 db Ref Lvl 0.30 db VBW 10 khz 37.5 dbm khz SWT 100 ms Unit dbm db Offset 1 [T1] dbm A GHz D1 25 dbm 1 [T1] 0.30 db khz 20 OPB khz T1 [T1] 9.91 dbm T1 T GHz T2 [T1] 8.95 dbm 1MAX 1MA GHz 0 D2-1 dbm Center 1.88 GHz Date: 29.MAR :45: khz/ Span 1 MHz FCC Part 22H/24E Page 17 of 28

18 FCC ; (a); (a) - SPURIOUS EMISSIONS AT ANTENNA TERMINALS Applicable Standards FCC , (a) and (a). The spectrum was to be investigated to the tenth harmonics of the highest fundamental frequency as specified in Test Procedure The RF output of the transceiver was connected to a spectrum analyzer and simulator through appropriate attenuation. The resolution bandwidth of the spectrum analyzer was set at 100kHz for below 1GHz & 1MHz/3MHz for above 1GHz. Sufficient scans were taken to show any out of band emissions up to 10 th harmonic. EUT Splitter Signal Analyzer CMU200 Test Data Environmental Conditions Temperature: 23.2 Relative Humidity: 50 % ATM Pressure: 101.1kPa The testing was performed by Mark Yu on EUT operation mode: Transmitting Test Result: Compliant. FCC Part 22H/24E Page 18 of 28

19 GSM 850 Band: 30 MHz 1GHz(GSM Mode) Marker 1 [T1] Ref Lvl dbm 36.5 dbm MHz db Offset 30 RBW 100 khz RF Att 40 db VBW 300 khz SWT 245 ms Unit dbm 1 [T1] dbm MHz A MAX 0 1MA -10 D1-13 dbm Fundamental Start 30 MHz Date: 29.MAR :36:31 97 MHz/ Stop 1 GHz 1 GHz 10 GHz (GSM Mode) Marker 1 [T1] Ref Lvl dbm 36.5 dbm GHz db Offset 30 RBW 1 MHz RF Att 40 db VBW 3 MHz SWT 52 ms Unit dbm 1 [T1] dbm GHz A MAX 0 1MA -10 D1-13 dbm Start 1 GHz Date: 29.MAR :37: MHz/ Stop 10 GHz FCC Part 22H/24E Page 19 of 28

20 PCS 1900 Band: 30 MHz 1GHz(GSM Mode) Marker 1 [T1] Ref Lvl dbm 37.5 dbm MHz db Offset 30 RBW 100 khz RF Att 40 db VBW 300 khz SWT 245 ms Unit dbm 1 [T1] dbm MHz A MAX 0 1MA -10 D1-13 dbm Start 30 MHz Date: 29.MAR :55:48 97 MHz/ Stop 1 GHz 1 GHz 20 GHz (GSM Mode) Marker 1 [T1] Ref Lvl dbm 37.5 dbm GHz db Offset 30 RBW 1 MHz RF Att 40 db VBW 3 MHz SWT 110 ms Unit dbm 1 [T1] dbm GHz A MAX 1MA -10 D1-13 dbm Fundamental Start 1 GHz Date: 29.MAR :57: GHz/ Stop 20 GHz FCC Part 22H/24E Page 20 of 28

21 FCC ; (a); (a) - SPURIOUS RADIATED EMISSIONS Applicable Standards FCC , (a) and (a) (a) Out of band emissions. The power of any emission outside of the authorized operating frequency ranges must be attenuated below the transmitting power (P) by a factor of at least log(p) db (a) Out of band emissions. The power of any emission outside of the authorized operating frequency ranges must be attenuated below the transmitting power (P) by a factor of at least log(p) db. Test Procedure The transmitter was placed on a wooden turntable, and it was transmitting into a non-radiating load which was also placed on the turntable. The measurement antenna was placed at a distance of 3 meters from the EUT. During the tests, the antenna height and polarization as well as EUT azimuth were varied in order to identify the maximum level of emissions from the EUT. The test was performed by placing the EUT on 3-orthogonal axis. The frequency range up to tenth harmonic of the fundamental frequency was investigated. Remove the EUT and replace it with substitution antenna. A signal generator was connected to the substitution antenna by a non-radiating cable. The absolute levels of the spurious emissions were measured by the substitution. Spurious emissions in db = 10 lg (TX pwr in Watts/0.001) the absolute level Spurious attenuation limit in db = Log 10 (power out in Watts) Test Data Environmental Conditions Temperature: 23.2 Relative Humidity: 50 % ATM Pressure: 101.1kPa The testing was performed by Mark Yu on Test Result: Compliant. FCC Part 22H/24E Page 21 of 28

22 Test mode: Transmitting (Pre-scan with low, middle and high channels, and the worse case data as below) 30 MHz ~ 10 GHz: Frequency Receiver Reading (dbμv) Turntable Angle Degree Rx Antenna Height (cm) Polar (H/V) GSM 850 Band Submitted Level Substituted Cable Loss (db) GSM Mode, Middle channel Antenna Gain (dbd/dbi) Absolute Level Limit Margin (db) H V H V H V H V MHz ~ 20 GHz: Frequency Receiver Reading (dbμv) Turntable Angle Degree Rx Antenna Height (cm) Polar (H/V) PCS 1900 Band Submitted Level Substituted Cable Loss (db) GSM Mode, Middle channel Antenna Gain (dbd/dbi) Absolute Level Limit Margin (db) H V H V H V Note: 1) Absolute Level = Submitted Level - Cable loss + Antenna Gain 2) Margin = Limit- Absolute Level FCC Part 22H/24E Page 22 of 28

23 FCC (a); (a) - BAND EDGES Applicable Standards According to (a), the power of any emissions outside of the authorized operating frequency ranges must be attenuated below the transmitting power (P) by a factor of at least log(p) db. According to (a), the power of any emissions outside of the authorized operating frequency ranges must be attenuated below the transmitting power (P) by a factor of at least log(p) db. Test Procedure The RF output of the transmitter was connected to the input of the spectrum analyzer through sufficient attenuation. The center of the spectrum analyzer was set to block edge frequency EUT Splitter Signal Analyzer CMU200 Test Data Environmental Conditions Temperature: 23.2 Relative Humidity: 50 % ATM Pressure: 101.1kPa The testing was performed by Mark Yu on EUT operation mode: Transmitting Test Result: Compliant. FCC Part 22H/24E Page 23 of 28

24 GSM 850 Band: GSM Mode, Left Band Edge Marker 1 [T1] Ref Lvl dbm 36.5 dbm MHz db Offset 30 RBW 5 khz RF Att 40 db VBW 10 khz SWT 200 ms Unit dbm 1 [T1] dbm MHz A MAX 0 1RM -10 D1-13 dbm Center 824 MHz Date: 29.MAR :33: khz/ Span 2 MHz GSM Mode, Right Band Edge Marker 1 [T1] Ref Lvl dbm 36.5 dbm MHz db Offset 30 RBW 5 khz RF Att 40 db VBW 10 khz SWT 200 ms Unit dbm 1 [T1] dbm MHz A MAX 0 1RM -10 D1-13 dbm Center 849 MHz Date: 29.MAR :34: khz/ Span 2 MHz FCC Part 22H/24E Page 24 of 28

25 PCS 1900 Band: GSM Mode, Left Band Edge Marker 1 [T1] Ref Lvl dbm 37.5 dbm GHz db Offset 30 RBW 5 khz RF Att 40 db VBW 10 khz SWT 200 ms Unit dbm 1 [T1] dbm GHz A MAX 0 1RM -10 D1-13 dbm Center 1.85 GHz Date: 29.MAR :50: khz/ Span 2 MHz GSM Mode, Right Band Edge Marker 1 [T1] Ref Lvl dbm 37.5 dbm GHz db Offset 30 RBW 5 khz RF Att 40 db VBW 10 khz SWT 200 ms Unit dbm 1 [T1] dbm GHz A MAX 1RM D1-13 dbm Center 1.91 GHz Date: 29.MAR :54: khz/ Span 2 MHz FCC Part 22H/24E Page 25 of 28

26 FCC ; ; FREQUENCY STABILITY Applicable Standards FCC , and According to FCC , the frequency stability shall be sufficient to ensure that the fundamental emissions stay within the authorized bands of operation. According to , the carrier frequency of each transmitter in the Public Mobile Services must be maintained within the tolerances given in Table below: Frequency Range Frequency Tolerance for Transmitters in the Public Mobile Services Base, fixed (ppm) Mobile > 3 watts (ppm) Mobile 3 watts (ppm) 25 to to to to to N/A N/A 929 to N/A N/A 2110 to N/A N/A According to , the frequency stability shall be sufficient to ensure that the fundamental emissions stays within the authorized frequency block. Test Procedure Frequency Stability vs. Temperature: The equipment under test was connected to an external DC power supply and the RF output was connected to communication test set via feed-through attenuators. The EUT was placed inside the temperature chamber. The DC leads and RF output cable exited the chamber through an opening made for the purpose. After the temperature stabilized for approximately 20 minutes, the frequency output was recorded from the communication test set. Frequency Stability vs. Voltage: For hand carried, battery powered equipment; reduce primary supply voltage to the battery operating end point which shall be specified by the manufacturer. Temperature Chamber EUT Test Equipment FCC Part 22H/24E Page 26 of 28

27 Test Data Environmental Conditions Temperature: 23.2 Relative Humidity: 50 % ATM Pressure: 101.1kPa The testing was performed by Mark Yu on EUT operation mode: Transmitting Test Result: Compliant. GSM 850 Band: Temperature ( ) -30 GSM Mode, Middle Channel, f o =836.6 MHz Frequency Error (Hz) Power Supplied (V DC ) Frequency Error (ppm) Limit (ppm) V min.= V max.= FCC Part 22H/24E Page 27 of 28

28 PCS 1900 Band: Temperature ( ) -30 GSM Mode, Middle Channel, f o = MHz Frequency Error (Hz) Power Supplied (V DC ) Frequency Error (ppm) Result pass pass pass pass pass pass pass pass pass 25 V min.= pass 25 V max.= pass ***** END OF REPORT ***** FCC Part 22H/24E Page 28 of 28