Recommend 4G TX test sequence is below:
Spectrum analyzer setup:
Frequency=1950MHz
RBW=1MHz
Span=100MHz
Manual Attenuation = 30dB
Ref level Offset = depends on a cable loss
Use the trigger video to fix the measurement
Use the peak search marker
AT#TESTMODE="TM"
AT#TESTMODE="SETLTEBAND 1"
AT#TESTMODE="CH 18300"
AT#TESTMODE="TCH"
AT#TESTMODE="TXGAIN 68"
Verify on instrument side that TX max power level is about 20.3 - 25.7dBm.
AT#TESTMODE="ESC"
To return to online mode:
AT#TESTMODE="OM"
Verify that module switches to operative mode.
RX test:
LTE: Inject a modulated LTE signal with RX channel 6300 to the unit.
Recommend 4G TX test sequence is below:
Signal generator setup:
Frequency = 806MHz + 500kHz(offset)
Level = -60dBm
CW is sent (RF on, MOD off)
Offset = depends on a cable loss
AT#TESTMODE="TM"
AT#TESTMODE="SETLTEBAND 20"
AT#TESTMODE="CH 24300"
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