Wcdma Transmitter Tunings; Tx Agc & Power Detector (Wcdma) - Nokia RM-42 Service Manual

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• If the Rx gain is acceptable, click Yes to save the results to the phone.

• To end the calibration, click Close.

WCDMA transmitter tunings

Tx AGC & power detector (WCDMA)

Tx AGC & power detector tuning has two purposes:

• to enable the phone to select the correct TxC value accurately in order to produce the required RF level

• to enable the phone to measure its own transmitter power accurately

There are two ways to perform the tuning. For an alternative method, see Alternative steps.

From the "Operating mode" dropdown menu, set mode to "Local". NOTE! After tuning is done change

system mode back to Dual by choosing "Free" to Selected Sytem Mode and click Write.'

From the Tuning menu, choose WCDMA -> Tx AGC & Power Detector.

Click Start.

In the "Wide Range" pane, click Tune (the leftmost Tune button).

Setup the spectrum analyzer in the following way:

Center frequency:

Company Confidential

RF Troubleshooting and Manual Tuning Guide

9241872 (Issue 1)

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