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6. Connect the signal generator to the phone, and set frequency and amplitude as instructed in the
Rx Calibration with band EGSM900 (step 1-3) pop-up window.
Important:
The calibration uses a non-modulated CW signal. Increase the signal generator level by
cable attenuation and module jig probe attenuation.
7. To perform the tuning, click OK.
8. Check that the tuning values are within the limits specified in the following table:
Table 13 RF tuning limits in Rx calibration
Min
Typ
Max
Unit
GSM850
AFC Value (init)
-200
-80..40
200
dB
AFC slope
0
108..121
200
dB
RSSI (AGC-0)
106
107..110
114
dB
GSM900
AFC Value (init)
-200
-105..62
200
dB
AFC slope
0
122
200
dB
RSSI (AGC-0)
106
107...110
114
dB
GSM1800
RM-414; RM-570
RF troubleshooting
Issue 2
COMPANY CONFIDENTIAL
Page 4 –31
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