JRC JSS-2500 - National DSC Frequencies for Routine Calls; International DSC Frequencies for Routine Calls

Appendix
11-2
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.
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The frequencies for Japan are as follows. Additionally, the
pair frequencies are used to make a call to the coast station.
Tx (kHz) Rx (kHz) Tx (kHz) Rx (kHz) Tx (kHz) Rx (kHz)
2169.00 8391.50 8431.50 18872.00 19682.50
4180.50 4218.00 12521.00 12623.00 22318.00 22410.00
6275.50 6326.50 16721.00 16844.00 25175.00 26103.00
11.3 International DSC frequencies for routine calls
The following international
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frequencies are used when calling ship and coast stations via DSC if
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. Tx (kHz) Rx (kHz) CH No. Tx (kHz) Rx (kHz)
--- 2189.50 2177.00
1602 16805.00 16903.00
402 4208.00 4219.50 1603 16805.50 16903.50
403 4208.50 4220.00 1604 16806.00 16904.00
404 4209.00 4220.50
1801 18898.50 19703.50
602 6312.50 6331.00 1802 18899.00 19704.00
603 6313.00 6331.50 1803 18899.50 19704.50
604 6313.50 6332.00
2201 22374.50 22444.00
802 8415.00 8436.50 2202 22375.00 22444.50
803 8415.50 8437.00 2203 22375.50 22445.00
804 8416.00 8437.50
2501 25208.50 26121.00
1202 12577.50 12657.00 2502 25209.00 26121.50
1203 12578.00 12657.50 2503 25209.50 26122.00
1204 12578.50 12658.00
- The above frequencies can only be used when the DSC message category is
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 2177.00 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.
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3
ITU-R M.541-9 Annex 3 4.1.2
4
RR Appendix 15
5
RR Appendix 17 part A footnote l
Note