Test and Calibration Repair Instruction Electrical/
1262-4107
Rev
1
Sony Mobile Communications AB – Company Internal
6(8)
Go/NoGo Testing
1.3 Attenuation Factors
The attenuation values listed below in 1.2.1 are valid only when the equipment listed on the
previous pages is being used!
1.3.1 Loss Values – Antenna Coupler
Attenuation
MT25i
Band
Channel
Rx
Tx
GSM 850
Low
7.50
8.89
Mid
7.00
7.99
High
5.00
5.55
GSM 900
Low
8.00
6.92
Mid
8.00
7.06
High
6.00
4.75
GSM 1800
Low
19.00
16.91
Mid
16.00
13.59
High
15.50
14.69
GSM 1900
Low
13.50
17.19
Mid
13.00
15.56
High
13.00
14.46
WCDMA 850
Low
-
-
Mid
-
-
High
-
-
WCDMA 900
Low
6.00
5.77
Mid
6.50
5.96
High
5.50
6.44
WCDMA 1900
Low
-
-
Mid
-
-
High
-
-
WCDMA 2100
Low
9.50
12.78
Mid
9.50
13.88
High
9.00
14.04
