T&T: AIS Class B

[Wray West]

I've read, on this list and others, people suggest that large ships 
filter out class B or small ships.  I have a friend that is captain of 
one of the 1000'+ supertankers that goes in and out of all the west 
coast ports, so I asked him the question.  The answer was, "My AIS 
overlays on the radar and I want as much information as I can get on 
every target out there.  I have a big screen and lots of room, so we 
display everything we can.  I don't even think we have the ability to 
turn off the Class B targets, but we would not do that, even if we did."
> I do hope that AIS receivers soon have a way to tune them
> out - I am quite sure the big guys do that right now.
> The value of AIS has been diminished.