[sac-forum] Re: Format of GPS Input Values
- From: "Dan Gruber" <dgruber@xxxxxxxxxxxx>
- To: <sac-forum@xxxxxxxxxxxxx>
- Date: Fri, 10 Nov 2006 20:26:44 -0700
Most GPS units can be set to use any of those formats, usually selected
through a "system" menu page. However, FWIW USGS topo maps are marked in
DD MM SS (and also in UTM, which isn't one of your choices and which I
wouldn't recommend for casual GPS users).
Keep in mind that the right-most digit in formats (1) and (2) implies
greater precision (<10 feet) than most handheld GPS units can deliver.
Personally, I use either UTM or format (1). A handy relationship is that
around here 1 second of lat or long is very roughly 100 feet.
Dan
-----Original Message-----
From: sac-forum-bounce@xxxxxxxxxxxxx
[mailto:sac-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Paul Dickson
Sent: Friday, November 10, 2006 8:10 PM
To: SAC Forum
Subject: [sac-forum] Format of GPS Input Values
I'm putting together some maps to SAC sites, but I have been given
conflict formats for GPS values. Two people have given me mutually
exclusive formats (and objected to the others format).
So which format can you input?
1) DDD MM SS.S
2) DDD MM.MMM
3) DDD.DDDD
My dad's Magellan RoadMate 800 will only allow street addresses. :-(
-Paul
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