What channel should you use to call for a radio check?

When requesting a radio check, the appropriate channel to use is Channel 26 for contacting Coast Guard Communications (CGC) and Channel 16 for initial contact. Channel 16, which is a designated international distress and calling frequency, is used primarily for establishing communication before switching to another channel for conversation. However, it is important to note that Channel 26 is often designated for communications with the Coast Guard in many regions.

By using Channel 26, you are directly engaging with the Coast Guard, which is the entity responsible for ensuring safety at sea and maintaining communication protocols. Channel 16 serves as the emergency and calling channel, but it's meant primarily for establishing initial contact. Therefore, calling for a radio check on Channel 26 allows for an effective test of your equipment while also communicating with the appropriate authorities.

The other options present channels that are not designated for calling for a radio check in the context of established maritime communication protocols. Channels like 22 or 14 are typically used for different types of communication and are not the recommended channels for a standard radio check request. Therefore, the recommended practices for radio checks emphasize Channel 26 paired with Channel 16 for any initial contact needed.