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From: <Bhansen97_at_aol.com>
subject: [Paddlewise] GPS newbie needs help
Date: Tue, 23 Mar 1999 17:11:13 EST
I'm hoping one of the experienced GPS users on the list can help me a bit.
These are probably pretty dumb questions, so maybe private e-mail will help,
and avoid cluttering up the group's bandwidth even more than I'm doing by
posting this note.

New to GPS, using Garmin II+, able to use most functions satisfactorily, but
having two "problems" and can't seem to figure out answers myself:

(1) In learning how to use the GPS, I've created several dozen waypoints and a
few routes, most of which I don't intend to put to further practical use. I've
deleted the waypoints and routes I won't use "in real life", but when I check
available memory in the GPS, it informs me that there are 98 current
waypoints, thus ~20% of available memory used up. How do I clear this memory
(the waypoints themselves no longer show up on the waypoint list)? I don't
find answers to this in the little manual, or at the Garmin website. Have
written to Garmin, but no response so far.

(2) When I use the unit while paddling, the "turn to" function seems wildly
inaccurate. If I followed it exclusively, it would usually lead me about 10
degrees off course, either to the R or to the L. The "track" and "course"
features themselves appear to be accurate, as measured by my boat's compass.
Am I guessing correctly that the "turn to" figures are mostly a gimmick, are
not accurate, and one is expected to be smart enough to steer by bearing and
course (with appropriate correction for windand current)? If so, I think I
still have enough Betz cells left to handle that .... I haven't yet tried the
"cross track" feature enough to have an idea of how accurate that is.

Thanks for whatever help folks can give. - Bill Hansen
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