My alarm clock

I live next to a river and Monday to Friday the fishing boats leave at around 0430 and return in the afternoon for the restaurant fish auction at 1700.

They all communicate by radio - but I don't know why because they yell so loudly in the mornings that they honestly don't wouldn't need to use it.

Most mornings I can sleep through it and it's not a problem but this week for some reason they have woken me up every morning and the captain of this boat is the main culprit with the loudest voice.