Subject: RE: After DeLorme atlases
Date: Aug 6 17:01:04 1997
From: Eric Henriksen - ehenriksen at complianceservices.com


On Wednesday, August 06, 1997 4:47 PM, Rob Saecker
[SMTP:rsaecker at thurston.com] wrote:
> >For the first time, $200 models (that track 10+ satellites) can
> >take quick readings in deep forest -- all that they lacked to
> >make them ideal for natural history use.
> >
> Really? As it was explained to me, the problem in forests is that the
> antenna has to be above the trees in order to accurately "see" the
> satellites. How have they gotten around that?
>
> Rob Saecker
> Olympia
>

If I remember correctly, it's the moisture content present in the green
vegetation that distorts the signal. This, of course, presents a
year-round problem here in WA forests. Traditionally antennae height was
the answer.

Eric Henriksen
Gig Harbor