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ContinuousWave: Small Boat Electrical
Automatic Identification System (AIS)
|Author||Topic: Automatic Identification System (AIS)|
posted 04-14-2006 09:43 AM ET (US)
This thread is for discussing vessel Automatic Identification Systems (AIS). The AIS discussion started in http://continuouswave.com/ubb/Forum6/HTML/000805.html. That dedicated AIS receiver will just be part of the receiver chip. Not a big deal at all.--Chuck
posted 04-14-2006 10:31 PM ET (US)
I'm betting on both--that AIS will be the next big thing in marine VHF receivers AND that Garmin will be selling one within the year.
posted 04-14-2006 11:33 PM ET (US)
I am looking forward to more development of recreational AIS devices. There is some talk of having larger recreational vessels carry AIS transmitters.
For now I am depending on others to keep me posted of new developments. So far all of the devices I have seen are separate receivers which will require a separate receive antenna.
posted 04-15-2006 09:23 AM ET (US)
A good starting point for information on AIS is:
posted 07-19-2006 06:08 PM ET (US)
Shine Micro (shinemicro.com) features live AIS maps for the Northeast, Northwest and southern California. It is interesting to see the technology in action realtime. Registration is free.
posted 07-19-2006 10:21 PM ET (US)
Ship Locator, likely based on AIS:
No registration required.
posted 07-20-2006 01:28 AM ET (US)
jimh, those vessels are way too far offshore, and their positions
way too out of date (more than a few minutes) to be AIS.
posted 07-21-2006 12:00 AM ET (US)
Here's a new service hosted by Sea Tow (SeaSmart) that uses your DSC VHF, MMSI #, a GPS that is connected via NMEA 0183 protocol. The new service is online in southern Florida and scheduled to be nationwide by the end of 2007.
posted 03-19-2007 03:03 PM ET (US)
I have the Garmin 492 chartplotter with AIS capability installed with an antenna splitter on my existing UHF receiver. It works fine and I can receive AIS info with icons displayed on the 492 screen out to about 20 miles.
The one problem is that the 492 chartplotter can be operated in north up, track up or course up. When in north up mode, everything is displayed properly. However, when in track up or course up, the AIS direction arrow extending from the displayed AIS icon is not rotated with the display - the ship is displayed going in the wrong direction! The navigation detail is correct and displayed on a separate page.
Has anyone else noticed this problem? I've reported it to Garmin but it's not fixed yet.
posted 03-19-2007 03:38 PM ET (US)
AIS information is tranmitted only in the North Up configuration. There is nothing wrong with your system. The same is true with other AIS configured CP (Raymarine, Northstar, Furuno etc)
posted 03-19-2007 09:24 PM ET (US)
Raymarine's AIS offering is due May 2007.
If I know Raymarine (and I do, all my electronics are Raymarine), it will be much too expensive for me to afford for 2 to 3 years.
I'll pick it up when I can, though. I love the concept.
posted 03-19-2007 11:02 PM ET (US)
AIS info is transmited with true north. It's a GPS firmware
bug if they can't add the angle of the screen to get the
angle to draw the arrow.
Garmin is pretty good about firmware fixes. I reported
posted 03-21-2007 11:45 AM ET (US)
Raymarine's (receive-only) AIS will fall somewhere in the $900.00 - 1100.00 range.
I don't really think it's worth that, despite how much I like the technology.
What does everyone expect this technology to cost?
posted 03-28-2007 02:46 PM ET (US)
Just released .... has a good demo of product.
posted 03-28-2007 09:17 PM ET (US)
Tiki is an interesting product for AIS if you have a boat
big enough to run a laptop on board.
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