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JRC JSS-2250 Instruction Manual: National Dsc Frequencies For Routine Calls

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Appendix

11.2 National DSC frequencies for routine calls

When ship and coast stations call national stations for purposes that are not safety or distress
purposes, normally use the national frequencies allocated by the administrator prior to using the
international frequencies listed later.
pair frequencies are used to make a call to the coast station.
Tx (kHz)
2169.0
4180.5
6275.5
11.3 International DSC frequencies for routine calls
The following international
the other station's nationality or the frequency they are watching is not know, except for safety or
distress calls. CH No. indicates channel numbers preprogrammed to this equipment.
CH No.
---
402
403
404
602
603
604
802
803
804
1202
1203
1204
-
The above frequencies can only be used when the DSC message category is
Note
Routine.
The above table lists the sending and receiving frequencies (duplex) when a
-
ship station calls a coast station.
-
Routine calls between ship stations use 2177.0 kHz as simplex.
Channels not listed in the table above (401/601/801/1201/1601) are the
-
frequencies listed earlier for distress and safety purposes.
-
In the table above, channels 402/602/802/1202/1602/1801/2201/2501 should
be selected first when making routine DSC calls on international frequencies.
3
ITU-R M.541-9
Annex 3
4
RR Appendix 15
5
RR Appendix 17
part A
11-2
3
The frequencies for Japan are as follows. Additionally, the
Rx (kHz)
Tx (kHz)
8391.5
4218.0
12521.0
6326.5
16721.0
4
frequencies are used when calling ship and coast stations via DSC if
Tx (kHz)
Rx (kHz)
2189.5
2177.0
4208.0
4219.5
4208.5
4220.0
4209.0
4220.5
6312.5
6331.0
6313.0
6331.5
6313.5
6332.0
8415.0
8436.5
8415.5
8437.0
8416.0
8437.5
12577.5
12657.0
12578.0
12657.5
12578.5
12658.0
4.1.2
footnote l
Rx (kHz)
Tx (kHz)
8431.5
18872.0
12623.0
22318.0
16844.0
25175.0
CH No.
Tx (kHz)
1602
16805.0
1603
16805.5
1604
16806.0
1801
18898.5
1802
18899.0
1803
18899.5
2201
22374.5
2202
22375.0
2203
22375.5
2501
25208.5
2502
25209.0
2503
25209.5
Rx (kHz)
19682.5
22410.0
26103.0
Rx (kHz)
16903.0
16903.5
16904.0
19703.5
19704.0
19704.5
22444.0
22444.5
22445.0
26121.0
26121.5
26122.0
5

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