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. To end the tuning, click Close.
WLAN transmitter troubleshooting
WLAN Tx tuning
Steps
1. From the
Tuning
menu choose WLAN TX tuning.
2. Press Start.
RM-91; RM-92
RF Troubleshooting and Manual Tuning Guide Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 7 –57
Copyright © 2006 Nokia. All rights reserved.
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