|
Will optional Class
B AIS be adopted by the boating fraternity? N.S., via e-mail
It’s
really too soon to tell, but I suspect that Automatic Identity System
(AIS) technology will eventually become a very desirable safety aid for
even small yachts. For one thing, there are a lot of skippers out there,
including yours truly, who have had never-to-be-forgotten, stomach-churning
near-collisions in limited visibility, even in broad daylight. We’re
motivated! While the performance and usability of radar has gotten better,
it will never by itself provide the breadth of data coming from an AIS
transponder. Go to www.aislive.com,
a Dutch-based site that displays real-time AIS signals for much of the
European coast and a few other areas high in the SOLAS commercial traffic
that’s already AIS-equipped. You have to register, but the site really
tells the AIS story. I just pulled up a map of the Dover Straits and can
see 39 AIS-equipped ships going every which way, some at high speed, within
a 15-square-mile area. I can get the name, call sign, size, type, course,
speed, and, in some cases, the cargo and destination of each vessel. The
site even has linked portrait photos of many, a feature probably coming
to the ships themselves soon. You can’t see exactly how this data
looks on the electronic chart and radar screens of participating vessels,
but I know heading lines, tracks, rates of turn, and collision situation
warnings can also be displayed. If you were negotiating those Straits
in a yacht, wouldn’t you at least want an AIS receiver to help you
understand what’s going on—better yet a Class B (non-SOLAS)
AIS transponder so you, too, would be an icon on everyone’s screens?
After all, the smaller the yacht you’re on, the worse radar or visual
target you’re apt to be.
You also might want
to check out SeaLinks (www.sealinks.net),
a new company that’s purportedly about to introduce the first Class
B AIS, a design that should be easy to add to your bridge, as all the
hardware is self-contained in its two-foot tubular antenna. SeaLinks already
markets a simple AIS receiver for less than $1,000 and is encouraging
land-based users to stream the results to its own Web viewer (so far only
Puget Sound, Washington, is covered). The availability of AIS info on
the Web brings up one worry that has developed about the technology: the
perception that terrorists could horribly misuse it. It’s a sad sign
of our times that bad guys targeting missiles at tankers or megayachts
wasn’t a serious concern when AIS was developed in the late 1990’s.
The authorities are working on ways to thwart this super-stomach-churning
possibility; stay tuned for more information in a future column devoted
to AIS.
Got a marine electronics
question? Write to Electronics Q&A, Power & Motoryacht,
260 Madison Ave., 8th Fl., New York, NY 10016. Fax: (917) 256-2282. e-mail:
PMYElectronics@primedia.com.
For fastest response, visit the Electronics forum at www.powerandmotoryacht.com.
No phone calls, please.
Next page >
Mariner walkie-talkie headsets > Page 1,
2, 3, 4, 5,
6
|