Calls to coast station :-
- Calls made on the appropriate working channel whenever possible as indicated in ITU list of coast station or ALRS – Vol-1.
- If working channel is not available then 2182 kHz (MF) or ch-16 (VHF) may be used for primary calling.
- When making a call to coast station on 2182 kHz, the ship station operator should indicate the reason for call and intended working frequency/ channel for subsquent traffic.
- If a CRS in called on the working frequency/ channel, it should normally reply on the same or paired frequency / channel on the same band.
- When calling on VHF working channel the ship stations should indicate channel being used.
Control of traffic :-
- During communications between ships and coast stations the coast station control the working.
- In communications between ships, the called ship stations control the working.
- However if a CRS finds it necessary to intervence in communication between ships, both ship station should abide by instruction from CRS.
Release of Identification:-
- A station should release its identification at the beginning and end of the transmission.
- Afterwards as frequent as necessary.
- In case of long communication, identification should be release at least every 15 minutes.
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