[GeoStL] Re: iPhone caching
- From: "Bernie Ver Hey" <Happykraut@xxxxxxxxxxxxx>
- To: <geocaching@xxxxxxxxxxxxx>
- Date: Sun, 10 Jan 2010 15:12:57 -0600
-
Glenn, I have to agree with you. I talked to Garmin quite some time ago and
they do not recommend averaging. It stands the reason that if you average a
bunch of bad readings with a bunch of good, the result will be average. Not
what I want when I hide a cache. Bernie
-----Original Message-----
From: geocaching-bounce@xxxxxxxxxxxxx
[mailto:geocaching-bounce@xxxxxxxxxxxxx] On Behalf Of Glenn
Sent: Sunday, January 10, 2010 2:41 PM
To: geocaching@xxxxxxxxxxxxx
Subject: [GeoStL] Re: iPhone caching
-
I have been looking at new cacher hides for a while and a lot of them need
to have their coordinates. I think most of the problem is not what they were
using but how they are making waypoints. Even my old mid '90s Magellan
handheld could give excellent numbers if ya did it correctly.
To me, the best way to get good numbers is just to take your time. You
don't have to take several reading to average, ay don't have to walk back
and forth or any of that. Just set the gps down and let it sit. Lots of
folks run up to a location, hit mark and run off. Those numbers will not be
very good. Someone did a comparison with a sub-centimeter GPS used for
surveying and some cheap old handhelds. Guess which one gave the better
numbers? Well of course the $20,000 gps gave better numbers but after
sitting on location for 5 minutes the cheap handhelds gave the same numbers.
There is a giant improvement in accuracy between zero and 3 minutes then a
slower improvement from 3 minutes to 5 minutes. After five minutes the
numbers didn't get any better and that was the point of diminishing returns.
So, bottom line, take any ole thing ya want but take your time.
My Garmin Vista was good, the 60csx is good too. My AT&T Tilt (htc8925)
was just as good and I have found lots and lots of caches with it if i move
a little slower. I REALLY like the GCz app for the windowz platform
http://www.nicque.com/PQz/GCz.htm . Moving slower has not been a problem
and y'all can quit laughing any time now. :-) The Iphone has also given
good numbers if you just take your time and time is the key in my
opinion.
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