Test report 02

FCC ID: O2J-235AS

Test Report

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FCCID_1551059

Frequency Stability Measurements For Airspan Communications Ltd Airsynergy 2.3 GHz TDD base station FCC ID: O2J-235AS SC_TR_39_B 05 September 2011 Sulis Consultants Limited Mead House, Longwater Road, Eversley, Hampshire, RG27 0NW, UK Registered in England & Wales, number 05466247 http://www.sulisconsultants.com

Contents 1 Revision History ................................................................................ 3 2 Associated Documents........................................................................ 3 3 Test Configuration ............................................................................. 4 3.1 Measurement method................................................................... 5 4 Test Results ...................................................................................... 5 5 Test Equipment ................................................................................. 6 Tables Table 1: Equipment under test................................................................... 4 Table 2: Test results ................................................................................ 5 Table 3: List of Test Equipment.................................................................. 6 Figures Figure 1: Test Configuration ...................................................................... 4 Figure 2: Example FSQ data capture (48V at 20°C)....................................... 6 SC_TR_39_B Page 2 of 6

1 Revision History Revision Originator Date Comment A C Blackham 16 August 2011 First Issue B C Blackham 05 September 2011 Typo corrected in table 2 2 Associated Documents [1] 47CFR2 Title 47 of FCC Rules Part 2 [2] ANSI / TIA-603-C- TIA Standard: Land Mobile FM or PM – Communications 2004 Equipment – Measurement and Performance Standards SC_TR_39_B Page 3 of 6

3 Test Configuration The unit shall be connected in a real-life representative manner as follows: Airsynergy Co-ax RF cable Drop cable (Cat5) With attenuation Equipment under Test In Thermal Chamber Support Equipment FSQ POE injector 48 V supply Figure 1: Test Configuration Item Part Number Serial Number Airsynergy SYN2-CN-00-U40-000 9B2312FFFF23 (baseband board) Table 1: Equipment under test SC_TR_39_B Page 4 of 6

3.1 Measurement method  The EUT was placed into the thermal chamber and connected to a DC supply and FSQ measuring receiver outside the chamber  The EUT was placed into commissioning mode and set to transmit a test waveform at 2347.9 MHz.  The FSQ is fitted with the WiMAX 802.16e option and was set to reported Frequency error in Hz relative to expected frequency of 2347.9 MHz  The Temperature of the chamber was varied between -30°C and +50°C in 10°C steps and the EUT temperature allowed to stabilise for one hour at each. Supply voltage was also varied when chamber was at 20°C.  Frequency error was measured by the FSQ and the results shown in section 4. 4 Test Results Freq Error Temp Voltage Freq Err (Hz) (ppm) (°C) (V dc) Tx1 Tx2 Tx1 Tx2 -30 48 -3176 -3194 -1.4 -1.4 -20 48 -2936 -2925 -1.3 -1.2 -10 48 -2995 -2988 -1.3 -1.3 0 48 -3049 -3046 -1.3 -1.3 10 48 -2418 -2408 -1.0 -1.0 40.8 -900 -902 -0.4 -0.4 20 48 -904 903 -0.4 0.4 55.2 -891 -896 -0.4 -0.4 30 48 -2038 -2045 -0.9 -0.9 40 48 -2617 -2593 -1.1 -1.1 50 48 -3239 -3237 -1.4 -1.4 Table 2: Test results SC_TR_39_B Page 5 of 6

IE E E 8 0 2 . 1 6 e - 2 0 0 5 O F D M A Frequency/Fs: 2.3479 GHz / 4 M H z Signal Lvl. Setting/Ext. A tt: -13.3 dBm / 4 1 dB C apture Time/No.Samples: 1 5 ms /6 0 0 0 1 Seg=0, DL-PUSC , ID=A 3 (3) Meas Setup: 1 T X x 1 RX Zone O ffset / Len: 1 / 2 0 Symbols C O NTINUO US TRG : .. RF Result S ummary of A nalyzed S ubframes No. of Subframes 3 Min Mean Limit Max Limit Unit C enter Frequency Error - 9 0 4 .2 4 - 9 04 .54 ± 18783 - 9 0 4 .7 6 ± 18783 Hz C lock Error - 0.4 3 - 0 .48 ±8 - 0.5 5 ±8 ppm T D Power DL Preamble 28 .36 2 8.3 6 28 .36 dBm T D Power Subframe 25 .03 2 5.0 3 25 .03 dBm T D Power Zone 24 .79 2 4.8 0 24 .80 dBm C rest Factor 9.6 5 9 .66 9.6 6 dB RSSI 27 .78 2 7.7 8 27 .78 dBm RSSI Standard Deviation - 1 3.2 2 dBm C INR 25 .26 2 5.2 7 25 .27 dB C INR Standard Deviation 2 5.2 6 dB Running ... Date: 21.JUL.2011 08:57:13 Figure 2: Example FSQ data capture (48V at 20°C) 5 Test Equipment Item Serial Number Calibration R&S FSQ 26 Airspan No 005316 Cal Date 2011-06-14 S/N 200022 Cal Ref 1400-37051 Table 3: List of Test Equipment SC_TR_39_B Page 6 of 6


Document Created: 2011-09-05 18:34:48
Document Modified: 2011-09-05 18:34:48
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