Nokia RM-596 Service Manual page 161

RM-596
Cellular RF troubleshooting
3. Make settings as shown in the figure:
4. GSM transmitter is activated when Active Unit is set to "Tx". Aura (N7509) supply voltages are on for
measurement purposes after this step is completed.
Optional step (not needed if GSM TX activation only required): Check the basic TX parameters (i.e. power,
5.
phase error, modulation and switching spectrum) manually, using a communication analyzer (for example
CMU–200). Change power level (in "RF Controls" tool) and make sure the power reading follows
accordingly.
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