[aprssig] APRS LAT/LONG standards

Curt, WE7U archer at eskimo.com
Thu May 26 13:54:03 EDT 2005

On Thu, 26 May 2005, Cap Pennell wrote:

> APRS+SA uses Decimal Degrees but has a very handy and versatile built-in
> "Coordinate Conversion and Map Capture" utility that even converts between
> Datums, does UTM, and creates APRS position strings.
> WinAPRS still uses Seconds instead of Decimal Minutes.
> I sometimes use the slick APRS+SA converter to translate positions for
> WinAPRS.  hi

Xastir has a similar feature but it doesn't do datum translations
(yet).  It's useful when you've got Xastir in UTM to support the
field teams and get numbers from a helo in another format.  You can
bring up the coordinate calculator alone or you can use it via the
"Calc" button when creating an object or item.

I've used this a _lot_ during SAR missions.  I'd venture to say that
I nearly couldn't get along without it anymore.  The alternative
(and what I used before it was coded) is to change input formats on
a GPS, insert a waypoint at those coordinates, then change formats
on the GPS again and write down the numbers.  Very slow.

Curt, WE7U.   APRS Client Comparisons: http://www.eskimo.com/~archer
"Lotto:    A tax on people who are bad at math." -- unknown
"Windows:  Microsoft's tax on computer illiterates." -- WE7U
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