If you know that the vessel you are about to call on the VHF radio maintains a radio watch on both the working and the calling frequencies, which frequency should you call on?
ā¢ VHF calling channel vs. working channel and what each is normally used for ā¢ How routine communications are usually set up before switching channels ā¢ Why distress and urgency frequencies are protected/special-use channels
ā¢ If both vessels can already hear you on more than one channel, which channel is meant for initiating contact and which is meant for continuing the conversation? ā¢ Think about which channels you should avoid using for normal, routine traffic even if the other vessel is listening there. ā¢ Ask yourself: after making initial contact, what is the normal next step in a standard VHF exchange?
ā¢ Confirm what a calling frequency is intended for in standard VHF procedures. ā¢ Confirm that distress and urgency channels have restricted uses and should not be used for routine calls. ā¢ Verify which channel is used first when you know the other station is guarding both calling and working channels.
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