Nokia RM-509 Service Manual page 129

RM-509; RM-510; RM-511
RF Troubleshooting
Setting
Active Unit
Rx/Tx Channel
Band
AFC
Operation Mode
Edge
Tx Data Type
Tx PA Mode
Tx Power Level
4. Check the basic TX parameters, using a communication analyser (e.g. CMU200).
• Power
• Phase error
• Modulation
• Switching spectrum
Issue 2
Tx
37
GSM 900
-28
Burst
Off
Random
High
5
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