Nokia RM-272 Service Manual page 28

Page 2 –6
SA-123
SA-123 is an RF coupler for GSM RF testing. It is used together with the
product-specific flash adapter.
The following table shows attenuations from the antenna pads of the
mobile terminal to the SMA connectors of SA-123:
• Nokia 3500c (RM-272)
Band Channel
EGSM Low
900
Mid
High
GSM Low
1800
Mid
High
GSM Low
1900
Mid
High
• Nokia 3500c (RM-273)
Band Channel
EGSM Low
850
Mid
High
GSM Low
1800
Mid
High
GSM Low
1900
Mid
High
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Service Tools and Service Concepts
RF coupler
RX Att. Tolerance
(dB) RX
4
4 +/-1
6
6
7 +/-1
6
6
6 +/-1
6
RX Att. Tolerance
(dB) RX
6
6 +/-1
6
8
8 +/-1
7
5
5 +/-1
5
RM-272; RM-273
TX Att. Tolerance
(dB) TX
5.9
4.3 +/-1
3.7
6.3
6.5 +/-1
6.5
7.3
6.9 +/-1
7
TX Att. Tolerance
(dB) TX
7.4
6.8 +/-1
6.4
6.3
6.8 +/-1
6.4
7.5
7 +/-1
6.4
Issue 1