Supported Channels And Frequencies - ABB 23WT25 Manual

2.2

Supported channels and frequencies

23WT25 and NSK5 support mainly the same center frequencies and deviations. The NSK5 also
supports center frequencies above the ITU-T telecontrol and data band which reaches up to
3240 Hz. Only 600 baud and 2400 baud are not compatible to each other. A compatible 1200
baud plus speech option is not available on the 23WT25.
Table 1: Supported center frequencies and deviations per baud rate for 23WT25 and NSK5
1 Included in narrowband firmware release
2 019 -1 2 -19
Baud rate 50
NSK5 ± 30 Hz ± 60 Hz
23WT25 ± 30 Hz ± 60 Hz
420
540
660
780
900
1020
1140
1260
1380
1500
1620
1740
1860
1980
2100
2220
2340
2460
2580
2700
2820
2940
3060
3180
3300
3420
3540
3660
3780
3900
200/
100 200
300
± 90 Hz ± 120 Hz
± 90 Hz 1 ± 120 Hz
480
540
600
720
900
960
1080
1200
1260
1440
1560
1620
1680
1920
1980
2040
2160
2340
2400
2520
2640
2700
2880
3000
3060
3120
3360
3420
3480
3600
3780
3840
1200
± 400 Hz
± 400 Hz
1700
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