Moderated Discussion Areas
  ContinuousWave: Small Boat Electrical
  AIS: On-line displays

Post New Topic  Post Reply
search | FAQ | profile | register | author help

Author Topic:   AIS: On-line displays
jimh posted 02-24-2007 12:10 PM ET (US)   Profile for jimh   Send Email to jimh  
Here is a nicely done website which shows vessel position and track data from AIS reception:

Chuck Tribolet posted 02-24-2007 07:43 PM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
Very cool.

But I wonder about the 600' vessel "under sail" at 0.1 knots.
Based on where it is, I suspect it's at one of the standard
SF anchorages and the bridge monkey didn't know how to setup
the AIS.

I'd really like to see similar info for Monterey on a weekend.
I suspect it would be pretty thin.

What vessels are required to have AIS transmitters? I know
the big boys are, but what about, say, 50' commercial
fishing vessels?


Yiddil posted 02-25-2007 09:43 PM ET (US)     Profile for Yiddil  Send Email to Yiddil     
That is so cool...wish they did that for other ports Like Baltimore etc...
where2 posted 02-25-2007 09:57 PM ET (US)     Profile for where2  Send Email to where2     
My favorite was the passenger ship with a status of "Moored" and a vessel speed of 34.8kts. Think how fast that would go if they hoisted the anchor!!

It seems this needs a little fine tuning if this AIS is going to work. I like the looks of it, but the display of "Under Power" and "Moored" needs some help.

doobee posted 02-27-2007 06:24 PM ET (US)     Profile for doobee  Send Email to doobee     
I used an AIS receiver on a boat delivery from Cape Cod to NJ. I found that the data input by the user was frequently wrong, however the critical data for collision avoidance, which comes from the transmitting vessel's GPS, was very useful.

Coming through NYC, targets were everywhere. For some reason, the high speed commuter ferries are not required to transmit data. While size does matter, you'd think that speed would be a consideration as well. I don't know how many boats they have in their fleet, but I bet if they outfitted evry one with a transmitter, it would still be cheaper than the inevitable lawsuit resulting from a collision.

The AIS receiver is pretty reasonable when you consider the info it gives you. On the boat I delivered, the whole setup only cost @$300 for the receiver and splitter to attach to his VHF antenna. His was running on Nobeltec but a lot of the GPS plotters offered today are AIS capable.

Post New Topic  Post Reply
Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.