Nokia 7250, 7250i 服务手册

CCS Technical Documentation

NHL-4J/

Issue 2 06/03

Page 45

RX Band Filter Response Compensation

RF generator needed.

This operation must be done separately on each band!

Start RX Calibration at EGSM (GSM900), then continue at GSM1800 band and finally on
the GSM1900 band

NOTE! Remember to do RX calibration before doing Rx Band Filter Response Compensa-

tion!

Remember to take jig and cable attenuations into account!

Select Maintenance => Tuning => Rx band filter response compensation

Select “Yes” to start tuning with values already saved to the phone

Set RF to 923.26771MHz level –80dBm.