Rx Band Filter Response Compensation (Gsm) - Nokia RM-42 Service Manual

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RF Troubleshooting and Manual Tuning Guide

12. To save values to the phone, check the "Save to Phone" check box and click Stop.

Repeat steps 3 to 8 for GSM1800 and GSM1900

Rx band filter response compensation (GSM)

Before you begin

Rx calibration must be done before the Rx Band Filter Response Compensation

In each GSM Rx band, there's a band rejecting filter in front of HINKU front end. The amplitude ripple caused by

these filters causes ripple to the RSSI measurement and therefore calibration is needed.

The calibration has to be repeated for each GSM band.

Connect module jig's GSM connector to signal generator.

From the dropdown menus, set "Operating mode" to Local.

From the Product menu, choose "System mode" and then choose WCDMA, GSM or Dual and click Write.

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