Cell Power Detector - Nokia RH-57 Series Troubleshooting Manual

Nokia Customer Care

Cell Power Detector

The following tables illustrate the measurements required for troubleshooting the cell
power detector.
Mode
Local
PA Gain
Tx ADC
Step
RF/IF GIO GIO
pdm 12 13
324 L L
142 L L
17 L L
-48 L L
-48 H L
-95 H L
-95 H H
-146 H H
-178 H H
-214 H H
-252 H H
-290 H H
-316 H H
-328 H H
-351 H H
none
Issue 1 07/2004
Table 9: Cell Power Setup
Tx Rx
On On
Input Chnn Tx Freq
384 836.52
Table 10: Cell Power Measurements: Cell, Channel 384
Conn
RF Pout
Pout at
Detector
-50 -86.3
-25 -63
0 -41
6 -30
7 -29
11 -26
13.2 -23.5
17 -21.5
19 -19
21 -17
23 -15
25 -12
26 -11.5
26.5 -11
27.5 -10
dBm dBm/
30kHz
©2004 Nokia Corporation
Band Chnn
CELL 384
Rx Freq
881.52
Power Detector
Test Det Test
Point Out Point
Right 2 Left
R814 C807
2
1.998
1.967
1.957
1.93
1.9
1.86
1.812
1.745
1.667
1.547
1.485
1.44
1.36
VDC
Company Confidential
2112 (RH-57)
Troubleshooting - RF
Rho
On
Comments
Det=Detector
mA
Po=Power
235 CELL band and
detector
coupling is about
22 dB
235
235
250
268
286
435
486
550
630
730
860
950
1000
1095
dBm only refers
to total power
measured
Page 17