Pcs Receiver Check From Rf To Iq - Nokia 6015 Troubleshooting - Rf

Nokia Customer Care

PCS Receiver Check from RF to IQ

Use the following values to check the PCS receiver functionality from RF to IQ output.
1. Start Phoenix in Local Mode with only the RX path turned on.
2. Inject a –75dBm CW signal of 1960.5MHz (i.e. 500kHz offset from 1960MHz or
10 channels away).
3. Measure a 500kHz tuning on the analyzer. You should see a typical -22dBm IQ
tuning. If the 300kHz tone works but the 500kHz tone does not, it is possible that
the BB filter was not set by Phoenix.
PCS I Q Output
dBm
Trace A
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Centre: 500 kHz
Res BW: 3 kHz
5/5/2004 3:37:55 PM
Figure 25 shows the PCS spectrum with an inject tone at -75dBm, as well as the IQ
output test points. Note that DC is present on the IQ output test points, and all test
points should be approximately equal.
Issue 1 08/2004
6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
2
Atten: 10 dB
Vid BW: 3 kHz
PcsIQ.spt
Figure 25: Receiver IQ Level on PCS Band
©2004 Nokia Corporation
Troubleshooting - RF
Span: 200 kHz
Sweep: 100 ms
HP8595E
Company Confidential
2
Trace A
503 kHz
-22.4500 dBm
Page 31