RE: [Paddlewise] EPIRB vs PLB; with and without GPS

From: rebyl_kayak <rebyl_kayak_at_energysustained.com>
Date: Mon, 9 Nov 2009 07:35:16 +1000
Jens Viggo Moesmand wrote:
>My question is whether there really is a need for more than 24 hours
>(such as possible with the McMurdo PLB) and whether anyone has a
>practical solution for the antenna problem.

G'Day Jens and Paddlewise,

I'd also like to ask whether the sea acts as a necessary groundplane to
improve an EPIRBs sensitivity and is the sea connected in some special way to
the EPIRB at RF frequencies to achieve this? Or is it simply the vertical
orientation of the antennae that's important?

All the best, PeterO
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Received on Sun Nov 08 2009 - 13:35:27 PST

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