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RF troubleshooting
Figure 113 Troubleshooting flowchart for EGSM1800
Measuring Rx module manually using oscilloscope and spectrum analyzer (GSM1900)
Context
Spectrum analyzer level values depend on the probe type and should be validated using a known good sample.
The levels that are given here are measured using a high frequency probe.
Measuring with an oscilloscope at test points RXI (J827) or RXQ (J828) ) and RXID (J261) or RXQD (J262) is
recommended only if RSSI reading does not provide enough information.
Page 7–14
Company Confidential
9235618 (Issue 2)
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