I always monitor 16 and if near the traffic lanes the local TSS channel.
No disrespect intended (I have the highest regard for the job that the USCG does), but a pet peeve of mine is that the USCG seems to only assign people that A. either have a mouth full of marbles or B. tend to get excited and talk WAY too fast while giving the location of an emergency. It's not only frustrating to not be able to figure out if a boat in trouble is close by, but could mean the difference between life and death. They need to take some lessons from the Canadian CG who are absolutely top notch as far as their ability to remain calm and professional during an emergency (we can monitor both here and the difference is like night and day (and it isn't just because I'm about deaf and wear hearing aids, Laurie agrees 100%)). I even contacted USCG in Seattle to try and make a suggestion to improve safety - Ha! - some higher up type practically laughed at me and said "you want the USCG to change the way we respond to an emergency just for you?
Sorry for the hijack, back to the OP's topic.
SV Laurie Anne
1988 Brewer 40 Pilothouse