Re: AIS very handy yesterday...foggy on SF Bay
I'm not negating the value of AIS, it's a wonderful tool. In this part of the world (PNW) I don't know that I've ever seen a commercial fish boat broadcasting AIS, the ferries, tankers, and tugs do so that's a help. I'm just saying that it only takes one "invisible" boat to ruin your day if you are in fog, snow, etc without radar. That is why I say AIS is not a substitute for radar.
SV Laurie Anne
1988 Brewer 40 Pilothouse