Sony XPeria ST25i - Disassembly

Test and Calibration Repair Instruction Electrical/
1265-3289 Rev 2

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
Attenuation
ST25i
ST25a
Band
Channel
Rx
Tx
Rx
Tx
GSM 850
Low 11.50 10.15 3.00 9.97
Mid 7.00 9.09 4.00 9.00
High 8.00 7.85 5.00 7.73
GSM 900
Low 12.00 5.84 5.50 5.40
Mid 13.00 6.25 11.00 6.18
High 14.00 6.83 11.00 7.18
GSM 1800
Low 8.50 10.94 5.50 14.22
Mid 8.00 9.73 9.00 11.37
High 8.00 8.28 10.00 10.97
GSM 1900
Low 5.00 6.39 9.50 8.79
Mid 7.00 6.25 9.00 8.79
High 9.50 6.51 9.00 8.11
WCDMA 850
Low
-
-
6.00
7.92
Mid
- - 4.50 7.48
High
-
-
6.00
6.36
WCDMA 900
Low 11.50 5.36 - -
Mid 12.50 5.85 - -
High 13.00 5.77 - -
WCDMA 1900
Low
-
-
8.50
8.32
Mid
-
-
9.00
8.29
High
- - 10.00 7.88
WCDMA 2100
Low 16.00 5.41 14.50 7.32
Mid 15.00 5.62 15.00 7.69
High 14.50 7.27 16.00 8.61