User Guide

Min Max

Tx Freq Comp (the first and last value) -4 +4

17. To save the tuned values to the terminal, click Write.

18. Close the

Tx Band Response Calibration

window.

Tx LO leakage (WCDMA)

Context

The purpose of Tx LO leakage tuning is to minimize the carrier leakage of the IQ-modulator which is caused

by the DC offset voltages in the Tx IQ-signal lines and in the actual IQ modulator.

The tuning improves WCDMA Tx AGC dynamics at low power levels. A self-calibration routine selects the best

combination for internal control words in order to produce minimum LO leakage.

Steps

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

2. Choose Tuning→WCDMA→ Tx LO Leakage .

3. Click Tune.

4. Click Finish and then Close.

WLAN troubleshooting

Introduction to WLAN troubleshooting

The main problem that can occur is malfunction in WLAN or WLAN ASICs or WLAN SMD components. Such

problems are unpredictable and may have many causes, either HW or SW related.

Note: While WLAN power tuning is not possible without power meter especially capable for

measuring WLAN wideband power, WLAN ICs (WLAN IC and BTH/WLAN front-end module) shall not

be changed.

RM-208

Nokia Customer Care RF Troubleshooting and Manual Tuning Guide

Page 7 –42 COMPANY CONFIDENTIAL Issue 1