[sand500]

> Let your would-be-rescuers know your position and status

Stupid question, do search and rescue services even have equipment that can tune into HAM frequencies, are they even listening on those frequencies, and do they regularly train on communicating with the HAM community?

I'm sure there are more established ways of radioing for help in the maritime world(Aviation has the guard frequency)

[tablarasa]

Not a stupid question at all. But these aren't search and rescue services, they are just other sailors. I'm talking about locales that are far far outside of the realm of typical rescue services, and in no particular jurisdiction. Your best bet for rescue is your fellow sailors or commercial shipping traffic. Radio nets like the Pacific Seafarers Net allow you to make yourself known so that folks can keep tabs on you (and you them) in case something happens.

EPIRB and other emergency beacons still use HF radio frequencies (not HAM of course) and countries like the U.S., Australia, New Zealand and others I'm sure are monitoring those signals. But even then, they will first and foremost look to the seafaring community to actually render assistance, and that kind of call to action does often make its way through HAM radio nets, though I'm not sure exactly how, e.g., the U.S. Coast Guard makes that first outreach as the rescue coordinator.