GSM RX chain activation for manual measurements/GSM RSSI measurement
Prerequisites
Make the following settings in Phoenix service software:
Setting GSM850 GSM900 GSM1800 GSM1900
Phoenix Channel 190 37 700 661
Signal generator
to antenna
connector
881.66771MHz 942.46771MHz 1842.86771MHz 1960.06771MHz
(67.71kHz offset) (67.71kHz offset) (67.71kHz offset) (67.71kHz offset)
at -60dBm at -60dBm at -60dBm at -60dBm
Steps
1. Set the phone to local mode.
2. Activate RSSI reading in Phoenix (Testing→GSM→RSSI reading )
Figure 43 Phoenix GSM RSSI reading window
Results
The reading should reflect the level of the signal generator (-losses) +/- 5 dB.
When varying the level in the range -30 to -102 dBm the reading should then follow within +/-5 dB.
RM-505; RM-506
RF Troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 4 –21
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