[Xastir-dev] Position accuracy
Gerry Creager N5JXS
gerry.creager at tamu.edu
Sun Dec 7 09:46:31 EST 2003
Add to the list: With a 1xRTT card, I use xastir when I travel, and use
the Tiger maps to give me high quality street-level data. I don't have
a Windows computer to put DeLorme s/w on... and I've not investigated
using WINE to do so either. Hmm. Maybe I should?
Jack Twilley wrote:
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>>>>>>"Curt" == Curt Mills <Curt> writes:
>
>
> [...]
>
> Curt> So... If you have a more precise position than what you can send
> Curt> over the air, of what use is it?
>
> A quote from Benjamin Franklin comes to mind, when he was asked a
> similar question in 1873 about the use of balloons:
>
> "Of what use is a newborn babe?"
>
> Prepare for a shock: there are people who use xastir for more than
> just sending and receiving positions via APRS.
>
> We currently have the ability to use maps with a finer level of detail
> than thousandths of a minute. There are GPSes that transmit their
> positions with a higher precision than thousandths of a minute. There
> are portable computers with color displays, xastir-friendly operating
> systems, and storage to hold lots of maps.
>
> With xastir, a good GPS and the right maps, the possibilities are
> endless:
>
> * acts of orienteering can be committed
> - geocaching
> - confluence hunting
> - highpointing
> * urban trips become survivable
> - traverse Boston's Freedom Trail
> - play tourist in Manhattan from Battery Park to Broadway
> - visit San Francisco's ethnic environments
> * retrace famous paths
> - run the Boston (or NYC, or ...) marathon off-season
> - go where Lewis and Clark went way back then
> - ride the old Route 66
>
> Not a single one of these uses necessitates amateur radio. Sure, ham
> radio can come along for any and all of those adventures, but it's not
> a requirement.
>
> Curt> The compressed positions give you an accuracy of 1 foot
> Curt> world-wide as I recall. I can't imaging needing anything better
> Curt> than that for any APRS use.
>
> It's my not-so-humble opinion that restricting xastir to the limits
> currently imposed by APRS is short-sighted.
>
> Jack.
> - --
> Jack Twilley
> jmt at twilley dot org
> http colon slash slash www dot twilley dot org slash tilde jmt slash
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--
Gerry Creager -- gerry.creager at tamu.edu
Network Engineering -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Page: 979.228.0173
Office: 903A Eller Bldg, TAMU, College Station, TX 77843
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