Troubleshooting diagram for GSM900 receiver
Troubleshooting flow
Figure 34 GSM900 receiver troubleshooting
Results
By measuring with an oscilloscope at RXIP or RXQP on a working GSM900 receiver this picture should be seen.
Signal amplitude peak-peak 108mV. DC offset 1.0V.
RM-298; RM-299
RF Troubleshooting Instructions
Page 4 –12 COMPANY CONFIDENTIAL Issue 1
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