Mounted search and rescue

["Robert Eversole at Turtletop Farm" <robert@turtletopfarm.com>]

Marie, 

Thanks, glad to return some bit of useful information. 

I've never operated a Magellan; my first GPS was an Etrex Legend. It was ok
for getting in the ballpark but nothing more. With the 60csx I was able to
map all the trails in the state park (East Fork in Ohio) my MSAR unit is
attached to (you can see them at www.trailqwest.com). I had great reception
even in the heaviest woods.


Robert


-----Original Message-----
From: msar-riders-bounces@lists.ibiblio.org
[mailto:msar-riders-bounces@lists.ibiblio.org] On Behalf Of Marie Lester
Sent: Saturday, January 05, 2008 7:26 AM
To: Mounted search and rescue
Subject: Re: [MSAR] GPS issue

On 1/2/08, Robert Eversole at Turtletop Farm <robert@turtletopfarm.com>
wrote:
> New Years Greetings from a lurker,
>
> Lat / Long positional drift is a combination of many factors including:
> 1) Receiver accuracy - Recreational models like the eTrex have a general
> accuracy of plus or minus 10 meters.
> 2) Receiver Configuration - Internal antennas are less accurate than
> external.
> 3) Canopy - Vegetative cover can play havoc with your reading's accuracy.
>
> These and other factors, all fold into why your GPS thinks it's moving
when
> it's clearly not. These units capture data continuously and with each
> capture errors are introduced. As long as the drift you're experiencing is
> within an area of about 60 feet (the sum of expected variations) your unit
> is most likely working fine.

Thanks, Robert,
You brought up some interesting points.
Thus far, I am really impressed with the fact that the Garmin 60CSx
can retain signal in thickly wooded areas as well as inside a home.
Previously, I had a Magellan SportTrack, and its reception did not
come close to this unit's performance.

Marie
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