re: school me on marine radios for kayak fishing

I’d just get a garmin sos satellite pager

Works anywhere on earth, doesn’t require someone to be in range to hear you, be on the right channel, and respond to you or relay to USCG

Also only weighs a couple ounces vs a big radio

Also likely cheaper, depending on model

Also you can send text messages, some even hook up to your phone so it’s like normal texting.

Only downside is most of the feature packed ones have a monthly subscription to pay for satellite coverage. But I think the basic “sos only” models are a one time price.