Nokia 2630 RM-298 Service Manual page 103

RM-298; RM-299
RF Troubleshooting Instructions
Results
By measuring with an oscilloscope at RXIP or RXQP on a working GSM1900 receiver this picture should be
seen. Signal amplitude 108 mVp-p. DC offset 1.0V.
Figure 61 1900 RX I/Q signal waveform
Issue 1 COMPANY CONFIDENTIAL Page 4 –33
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