User Guide

Nokia Customer Care 6(b) - RF Troubleshooting Instructions
RH-37
Issue 1 07/04 Nokia Corporation Page 9
Measuring RX performance using SNR measurement
Start Phoenix Service Software and open FBUS connection.
Select Scan Product Ctrl-R
Wait until the phone information is shown in the lower right corner of the screen.
Set operating mode to <local mode>.
Select Testing T
RF Controls F
Select Band GSM 900 or GSM1800 or GSM1900
Active unit RX
Operation mode Burst
RX/TX Channel 37 or 700 or 661
Select Testing T
SNR Measurement M
Select Measuring mode Fast SNR (Radio Button)
Press Start
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: