Re: [Paddlewise] GPS

From: Ferdinand Soethe <F.SOETHE_at_oln.comlink.apc.org>
Date: Wed, 10 May 2000 05:33:14 +0000
> According to the Garmin website, the eTrex can be submerged to 1 meter
> for 30 minutes. So, unless you roll really slowly, you _should_ be
> fine. ;-)  I don't have a GPS yet, but I may be getting one soon.

Careful about interpreting these standard definitions for waterproofness. They
are used in watches as well and have a totally different meaning when
interpreted from a technicians point of view.

When they quote that standard and a depth of one meter they are really talking
about the pressure equivalent to a depth of one meter of *unmoving water*.

Unfortunately in reality water often moves relative to your watch/eTrex, either
because the device hits the water while moving through a roll or because a
strong gales moves the waves across your deck. In this case the additional
impact can easily add pressure (from movemment) that exceed the specified 1
meter-eqivalent.

When buying a watch I was told to go for a least 30 meters to be save when
swimming on the surface.

Regards
Ferdinand

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Ferdinand Soethe                  o/    o__/
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ph +49-511-9845437  mobile +49-170-6362720  email f.soethe_at_apc.de
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Received on Tue May 09 2000 - 21:53:43 PDT

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