Nokia 7250, 7250i Instruction De Maintenance
NHL-4J/NHL-4JX
CCS Technical Documentation
Page 40
Copyright Nokia. All rights reserved.
Issue 2 06/03
Receiver Tuning: RX Channel Select Filter Calibration
Extra equipment / external RF signal not needed.
Must be done before other RX calibrations.
This function is used to calibrate RX channel select filter in GSM Phones.
Rx Channel select filter is tuned only in one band = Single calibration for both bands.
Select Maintenance => Tuning => Rx Channel select filter calibration.
“Save to Phone “ is checked by default
Uncheck “Save to Phone “ if you don´t want the values to be saved to phone (eg testing)!
Press "Tune" to start the tuning
Tuning values must be 0…31
If values shown are within limits, choose “Stop”
IClose the “RX Channel Select Filter Calibration “– dialog to end tuning
Close the Rx Channel select filter calibration – dialog, the values are saved to phone