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Note:
Never activate the GSM or WCDMA transmitter without a proper antenna load. Always connect
a 50 Ω load to the RF connector (antenna, RF-measurement equipment or at least a 2 W dummy
load); otherwise the GSM or WCDMA Power amplifier (PA) may be damaged.
GSM transmitter troubleshooting
Steps
1. Set the phone to local mode.
2. Activate RF controls in Phoenix (Testing
→
GSM
→
Rf Controls ).
Use the following settings:
3. Check the basic TX parameters (i.e. power, phase error, modulation and switching spectrum), using a
communication analyser (for example CMU200).
RM-414; RM-570
RF troubleshooting
Page 4 –20
COMPANY CONFIDENTIAL
Issue 2
Copyright © 2009 Nokia. All rights reserved.
Содержание 6600 slide
Страница 103: ...4 RF troubleshooting Nokia Customer Care Issue 2 COMPANY CONFIDENTIAL Page 4 1 Copyright 2009 Nokia All rights reserved ...
Страница 153: ...5 System Module Nokia Customer Care Issue 2 COMPANY CONFIDENTIAL Page 5 1 Copyright 2009 Nokia All rights reserved ...
Страница 185: ...Glossary Nokia Customer Care Issue 2 COMPANY CONFIDENTIAL Page Glossary 1 Copyright 2009 Nokia All rights reserved ...