Nokia RM-555 Service Manual page 169

RM-555
RF Troubleshooting
Setting
Phoenix Channel
Signal generator
to antenna
connector
Steps
1. Set the phone to local mode.
2. Activate RSSI reading in Phoenix (Testing→GSM→RSSI reading )
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.
Issue 1
GSM850
190 37
881.66771MHz 942.46771MHz
(67.71kHz offset) (67.71kHz offset)
at -60dBm at -60dBm
Figure 54 Phoenix GSM RSSI reading window
COMPANY CONFIDENTIAL
Copyright © 2009 Nokia. All rights reserved.
GSM900 GSM1800
700
1842.86771MHz
(67.71kHz offset)
at -60dBm
GSM1900
661
1960.06771MHz
(67.71kHz offset)
at -60dBm
Page 4 –21