Which channel is used for radio checks in maritime communication?

Dive into the Restricted Operator’s Certificate – Maritime. Utilize flashcards and multiple-choice questions. Enhance your maritime communication knowledge and prepare with confidence!

Channel 16 is designated as the international distress, safety, and calling frequency for maritime communication, making it the primary channel for radio checks. It is exclusively meant for urgent communication and should only be used for distress calls, so it is not suitable for routine checks.

Channel 22A is indeed utilized for routine communication and operational purposes, including radio checks in the United States. However, it is not the internationally recognized channel for this purpose.

Channel 70 is reserved for digital selective calling (DSC) and is not used for voice communication, including radio checks. Its function is specifically related to the transmission of automated distress and safety messages.

Channel 12 is utilized for vessel traffic service (VTS) communications in some areas, but similar to the others, it is not designated for radio checks.

Thus, while it might seem that Channel 22A carries utility for radio checks, it is not the widely recognized and recommended channel for this purpose internationally, reaffirming that Channel 16 is preferable for such communications.

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