Cell Receiver Check From Rf To Iq - Nokia 7088 Troubleshooting Manual

7088 (RM-219)
RF Description and Troubleshooting

Cell Receiver Check from RF to IQ

Use the following values to check the CDMA Cell Rx functionality from RF to IQ
output.
1. Start FTM in Local Mode with only the Rx path turned on and set
LNA_GAIN_STATE=0.
2. Inject a –75 dBm CW signal of 881.82 MHz (i.e. 300 kHz offset from 881.52
MHz or 10 channels away).
3.
Measure a 300 kHz tuning on the analyzer. You should see a typical -48 dBm IQ
tuning for CDMA Cell.
Figure 10: Receiver IQ level on CDMA Cell band
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