《FM test director》由会员分享,可在线阅读,更多相关《FM test director(7页珍藏版)》请在金锄头文库上搜索。
1、 FM TEST1.測試條件 Condition2 測試儀器 EquipmentEquipment Option QuantityUniversal communication tester (8960) 1Universal communication tester(cmu200) 1cable 4Power supply(Agilent66319B) 13 測試程序 Test ProgramTBD4 規格 Specification5 測試步驟 Test Procedure 5.2 連接儀器如第 6 部分.5.2.1 设置 8960:按 measurement selectionGSM a
2、nalog AudioAnalog Audio setup (设置结果如表 1)图 1 (表 1)5.2.2 CMU200 设置:按-Basic functionsRF Analyzer / GeneratorGenerator (设置结果如表 2)图 2modulation:输入 FM ; FM Frequency :输入 1kHz ; FM Deviation :输入 22.5kHz5.2.3 Usable sensitivity 测试:设置好想要测试的频率(CMU200 :F requency) 调整 level (SINAD 处于+/-26 dB)记录这个level 值,就是 Usab
3、le sensitivity 值.5.2.4 Auto search level 测试:调整 level 值 设置手机为自动搜索状态当手机搜到一个频道时记录下这个 level 值,就是 Auto search level.5.2.5 Frequency Range 测试:设置 CMU200 如表 2调整 Frequency 从 88M-108M 确认 Audio output 正常工作。表 25.2.6 T.H.D 测试:设置 8960 如表 1设置 CMU200 如图 2记录下 8960 的Distortion5.2.7 Current consumption 测试:设置 8960 如表 1
4、设置 CMU200 如下表设置 BS(8960):Volume max ;GSM Cell=on ; Bcc=5 ; DTX=off ; Paging Period = 2 (如图 3) 从电源上记录电流值.22.51FM88,108-47Frequency rangeFM deviationKHzFM frequencyKHzModulationFrequencyMHzRF leveldBmTest item 图 36 儀器架設 measurement setup:7 Test ResultModel Order S/W versionTester Battery JudgementNo.F
5、requency(MHz)Sensitivity(dBm)below -91T.H.D(%)below 1 %OverloadT.H.Dbelow 1 %Auto SearchLevel(dBm)-90 +/- 10Sensitivity(dBm)T.H.D(%)Auto SearchLevel(dBm)88.389.189.990.791.191.592.393.193.994.795.596.397.197.998.799.5100.3101.1101.9102.7103.5104.1104.3105.1105.9106.7107.5AverageConditionSample No. CurrentFM RADIO Perfomance TESTFM RADIO Current ConsumptionSpec : 3min Average 40mA (at standbymode with FM Radio on)Frequency 98.1MHz,Volume max,GSM Cell=on, BCC=5, DTX=off, Paging Period = 2NO.1 NO.2