Nokia RH-66 Troubleshooting Manual page 18

2115i/2116/2116i (RH-66)
RF Description and Troubleshooting
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 13 shows the PCS spectrum with an inject tone at -75 dBm, 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.
Figure 13: PCS spectrum (left) and IQ output test points (right)
Page 18
2
Atten: 10 dB
Vid BW: 3 kHz
PcsIQ.spt
Figure 12: Receiver IQ Level on PCS Band
©2005 Nokia Corporation
Span: 200 kHz
Sweep: 100 ms
HP8595E
RX_QN
RX_IP
RX_IN
RX_QP
Company Confidential
2 Trace A
503 kHz
-22.4500 dBm
Issue 1 03/2005