User Guide

Steps

1. Connect the phone to a spectrum analyzer.

2. From the dropdown menus, set "Operating mode" to Local, "System mode" to GSM, and Band to GSM900.

3. From the Tuning menu, choose GSM -> Tx Power Level Tuning.

4. Set Mode to Automatic and Edge to Off.

5. Set the spectrum analyzer for power level tuning:

Frequency channel frequency (897.4MHz GSM900,

1747.8MHz GSM1800, 1880MHz GSM1900)

Span 0 Hz

Sweep time 2ms

Trigger Video triggering (-10dBm)

Resolution BW 3MHz

Video BW 3MHz

Reference level offset sum cable attenuation with module jig

attenuation

Reference level 33dBm

A power meter with a peak power detector can be also used. Remember to take the attenuations in the

account!

RM-86

RF Troubleshooting and Manual Tuning Guide Nokia Customer Care

Issue 1 COMPANY CONFIDENTIAL Page 7 –33