Sa-113 Attenuation Values - Nokia n81 Service Manual

RM-179; RM-223
Service Tools and Service Concepts

SA-113 attenuation values

The following table shows attenuations from the antenna pads of the mobile terminal to the SMA connectors
of SA-113:
Band
Low
GSM 850 Mid
High
Low
GSM 900 Mid
High
Low
GSM 1800 Mid
High
Low
GSM 1900 Mid
High
Low
WCDMA I
Mid
High
Issue 1
SA-113
SA-113 is an RF coupler for WCDMA and GSM RF testing. It is used
together with the product-specific flash adapter.
For the attenuation values, see
(page 2–7).
Channel TX f [MHz] RX f [MHz] TX Loss
UP/
DOWN
128 824.2
189 836.4
251 858.8
975 880.2
37 897.4
124 915.8
512 1710.2
698 1747.4
885 1784.8
512 1850.2
661 1880.0
810 1909.8
9613 /
10563 1922.4
9750 /
10700 1950.0
9887 /
10837 1977.6
COMPANY CONFIDENTIAL
Copyright © 2007 Nokia. All rights reserved.
RF coupler
SA-113 attenuation values
Slider OPEN
[dB]
869.2 7.34
881.4 6.47
893.8 5.94
925.2 11.76
942.8 10.56
960.8 4.31
1805.2 11.82
1842.4 11.68
1879.8 12.24
1930.2 12.15
1960.0 11.85
1989.8 11.93
2112.4 17.60
2140.0 17.80
2167.6 17.82
Slider CLOSE
RX Loss TX Loss RX Loss
[dB] [dB]
13.16 6.84
12.07 5.90
10.65 5.26
6.45 10.52
6.12 8.63
6.48 4.13
19.03 10.61
16.89 10.79
14.88 11.19
12.06 11.05
12.79 10.95
13.20 11.35
16.82 17.47
15.61 17.24
15.77 17.19
[dB]
13.33
12.04
10.05
5.44
4.79
4.93
18.03
15.33
13.16
11.32
11.76
11.89
15.21
14.54
15.20
Page 2 –7