User Guide

GSM receiver tunings

Rx calibration (GSM)

Context

Rx Calibration is used to find out the real gain values of the GSM Rx AGC system and tuning response of the

AFC system (AFC D/A init value and AFC slope)

Steps

1. Connect the GSM connector of the module jig to a signal generator.

2. Start

Phoenix

service software.

3. From the Operating mode drop-down menu, set mode to Local.

4. Choose Tuning→GSM→Rx Calibration .

5. Check the Load from Phone check box, and uncheck Save to Phone.

6. From the Band drop-down menu, choose e.g. GSM900.

7. Click Start.

RM-198

Nokia Customer Care RF Troubleshooting and Manual Tuning Guide

Page 7 –24 COMPANY CONFIDENTIAL Issue 1