Re: [Paddlewise] VHF

From: Product Information Department <pid_at_mec.ca>
Date: Wed, 02 Dec 1998 09:43:26 -0800
At 08:58 AM 12/2/98 -0800, Edward wrote:
>Somebody else said: "EPIRB require much longer response times (24-36
>hours ?)" ???? Why so long? I really prefer same-day service when I am
>bobbing.
>
One reason is that the false alarm rate with EPIRBs is about 90%. The Coast
Guard may wait several hours before responding just to be sure it's for
real. This situation should improve as traceable EPIRBs with their unique
coded signals replace those that just send out "generic" signals. 
The second reason: In areas where there is not yet continuous satellite
coverage, your EPIRB signal is not detected until a satellite happens to
pass overhead. It then records your signal, but does not download it to SAR
stations until it passes over one of those. As satellite coverage improves,
EPIRB signals will be able to be received in "real time". Even so I expect
the response time will still be longer than if you were able to contact
someone nearby on VHF 16. So, although I carry an EPIRB, I don't count on
it for situations where I might swimming - I think of it more for
situations where I might be stranded ashore with a dislocated shoulder, for
example, able to hold out for a couple of days, but unable to proceed under
my own power.
While we're talking EPIRBs, I notice Breitling-Orbiter
(www.breitling-orbiter.ch) is making a watch with a built-in 121.5 MHz
beacon. The ultimate X-mas gift for the tech-weenie kayaker on your list?

Cheers
Philip T. 


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Received on Wed Dec 02 1998 - 09:47:14 PST

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