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[aprssig] APRS resolution

Ken H> sailingtoo at gmail.com
Fri Oct 5 14:00:02 UTC 2007


The *real* accuracy of GPS has to be realized - Isn't it like 3 meters
or so 100% of the time with perhaps a bit less than that 95% of the
time....

>From all I've read the accuracy of a GPS isn't really a function of
the cost - BTW, what input device do you use other than a GPS for
improved accuracy?

73 de Ken H. K9FV


On 10/5/07, Joel Maslak <jmaslak-aprs at antelope.net> wrote:
> On Oct 5, 2007, at 7:28 AM, Ken H> wrote:
>
> > Hey guys - this whole thing about 1 foot accuracy vs 1 foot resolution
> > is sorta silly - GPS just doesn't do that good.  The whole thing is a
> > lot like measuring with a tape measure, then writing the results to
> > 0.001 inch - just is not there.
>
>
> There is no reason a GPS has to be the position input device for
> APRS.  There is certainly no reason it has to be a cheap GPS.
>
> Clearly someone has use for it, or we wouldn't be discussing it.
>
> Certainly *I* have had use for more accurate positions than APRS
> normally gives, but still within the accuracy of a GPS receiver.  I
> would like to be able to transmit a position of, say, a Geocache
> object and have it display (accurately) on my GPS in my vehicle,
> rather than just show up "nearby".  Now maybe people in other hobbies
> wouldn't care about that - that's fine, but having this capability
> isn't a bad thing, if, like Bob keeps trying to explain, it's done in
> a way that doesn't break everything that can't understand it.
>
> It's definitely got it's uses, although, I agree, the normal accuracy
> and resolution of APRS is fine for 99% of situations, and certainly
> any moving vehicle.
>
>
>
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