Rx Band Filter Response Compensation (Gsm) - Nokia MOBILE TERMINAL Service Manual

RM-356
RF troubleshooting
RSSI (AGC-0)
GSM1900
RSSI (AGC-0)
9. Click Next to continue with GSM1800 Rx tuning.
Next actions
Repeat steps 6 to 9 for GSM1800 and GSM1900

Rx band filter response compensation (GSM)

Prerequisites
Rx calibration must be performed before the Rx band filter response compensation.
Context
On each GSM Rx band, there is a band filter in front of the RF ASIC front end. The amplitude ripple caused by
these filters causes ripple to the RSSI measurement, and therefore calibration is needed.
Issue 1
Min
105 105...109
105 105...109
COMPANY CONFIDENTIAL
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Typ Max
114
114
Unit
dB
dB
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