@neauoire @cathos regarding which radio to get, I'd suggest something like an ICOM IC-7100. It's not marine grade (they cost 3X!), but it's HF, VHF, UHF, the display is separated from the main unit, it has an integrated USB sound card so you connect the linux pc with fldigi just with a single cable. So, if you can install it in a protected spot on the boat, I'd say it's a perfect little radio for your kind of use.