Measuring Front-End Power Levels Using Spectrum Analyzer; Fig 9 Signal Measurement - Nokia NPL-4 Series Troubleshooting Instructions

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- 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
properly working phone sample.
- Start Phoenix Service Software and open FBUS connection.
- Select → Scan Product (Ctrl-R)
Wait until phone information is shown in the lower right corner of the screen.
- Set operating mode to "local mode"
- Select → Testing → RF Controls
- Select → Band → GSM850 or GSM 900 or GSM1800 or GSM1900
Active unit → RX
Operation mode → Continuous
RX/TX Channel → 190 or 37 or 700 or 661
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Issue 2 05/05
Company confidential
Figure 9: Signal Measurement
NPL-4/5/
Troubleshooting Instructions
Page 19