User Guide

NHL-12
Nokia Customer Care 3 - Service Software Instructions
42 COMPANY CONFIDENTIAL 2005
Copyright © 2005 Nokia. All Rights Reserved.
■ Receiver manual tuning
Rx Channel Select Filter Calibration
• Extra equipment / external RF signal is 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 every
band.
To start calibrating:
1. From the “Tuning” menu, choose “Rx Channel Select Filter Calibration”.
2. To start the tuning, click "Tune".
Tuning values must be 0…31
“Save to Phone “is checked by default
If you do not want the values to be saved to phone, uncheck “Save to Phone “ (e.g.
testing).
3. If values shown are within limits, click “Stop”
4. To end tuning, and to save the values to the phone, close the “Rx Channel Select
Filter Calibration“ dialog box.
Rx Calibration
• RF generator is needed.
• This tuning performs Rx calibration.