Offshore, comms rarely quit with a clean snap. They just get peculiar: a VHF that hears fine but can’t be heard, AIS targets that come and go like they’ve got places to be, a sat unit that connects only when you’re standing on one leg by the companionway.
The trick is not to take it personally. Radios don’t fail out of spite; they fail in chains—power, settings, connectors, coax, antennas, and whatever saltwater has been plotting in the background. When you’re on the helm watch, you want a steady way to sort “annoying” from “safety problem,” and to keep the crew using whatever still works without guessing.