Measuring Front-End Power Levels Using Spectrum Analyzer - Nokia RM-94 Rf Troubleshooting Instructions

RM-94
6(b) - RF Troubleshooting
Select
Select
Press
The window <Signal Measurement> pops up informing on frequency and power level of the
signal generator to be set. Follow the command <Turn ON the RF generator>.
Press <ok> and the window will close.
Read the SNR result from the window SNR Measurement. The value shall exceed:
• GSM 900: > 20 dB
• GSM 1800: > 18 dB
• GSM 1900: > 18 dB
The set up should now look like this:
(The example below shows a screen shot in GSM900!)
Choose the remaining GSM bands and measure accordingly the procedure described above.

Measuring front-end power levels using spectrum analyzer

Spectrum analyzer (SA) level values depend on the probe type and shall be verified by a prop-
erly working phone sample. The levels that are given in this document are measured with a re-
sistive probe (50 Ohm semi-rigid cable).
Start Phoenix Service Software and open FBUS connection.
Issue 1 04/2005
Operation mode
RX/TX Channel
Testing
Measuring mode
Start
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SNR Measurement
Fast SNR (Radio Button)
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