Gsm1900 Power Measurement; Receiver Rssi Measurement; Rssi Procedure - Nokia RH-47 Series Rf Description And Troubleshooting

RH-47
7 - RF Description and Troubleshooting
MJ-21 GSM1900 power measurement
After the GSM850 power measurement is done the phone switches automatically to the
GSM1900 band.
Move the cursor to PCL=0 and align the phone exactly to 29.5 dBm.
- RF analyser set to mid channel
(661) 1880MHz
- Zero-Span
- RBW >=3MHz
- Video Trigger
- RMS power
MJ-21 receiver RSSI measurement
RSSI measurement must be performed on Low, Mid and High channels on both bands
(GSM850 and 1900).
B a n d B a n d
G S M G S M 8 5 0 8 5 0
G S M G S M 1 9 0 0 1 9 0 0
The following frequencies must be set to the RF generator used for RSSI:
G SM 850
G SM 1900 R X
MJ-21 RSSI procedure
1 Start the phone in Local mode.
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Table 3: Channel assignment
L o w L o w
1 2 8 1 2 8
5 1 2 5 1 2
Low [M H z]
R X 869,26771
1930,26771
Copyright © 2004 Nokia Corporation
Company Confidential
Nokia Customer Care
M i d M i d
1 9 0 1 9 0
6 6 1 6 6 1
M id [M H z] H igh [M H z]
881,66771 893,86771
1960,06771 1989,86771
H i g h H i g h
2 5 1 2 5 1
8 1 0 8 1 0
Issue 1 05/04