[aprssig] TAPR Differential GPS Reference Station
Cap Pennell
cap at cruzio.com
Tue Apr 21 21:11:25 EDT 2009
And (not APRS, but) Stan Huntting KW7KW created SAwatch to do the smoothing
too, and it works with the TAPR DGPS Reference Station Interface Board.
http://www.huntting.com/sawatch/
http://www.tapr.org/gps_dgps.html#gpsoncore
73, Cap
> -----Original Message-----
> From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On
> Behalf Of Steve Dimse
> Sent: Tuesday, April 21, 2009 5:15 PM
> To: k5ykg at arrl.net; TAPR APRS Mailing List
> Subject: Re: [aprssig] TAPR Differential GPS Reference Station
>
> I forget the exact algorithm TAC-2 used, it was some sort of
> averaging. If I recall right the length was user-programmable but I
> think 24 hours was recommended.
>
>
> Steve
>
> On Apr 21, 2009, at 7:56 PM, Boyd Prestwood K5YKG wrote:
>
> >
> > Steve, Wasn't this something like an "averaging" of accumulated
> > positions over that 24-hour period? Then those coordinates were
> > programmed into the Ref Station?
> > It would be appreciated if anyone else knows how any of the client
> > applications massaged or used any of this data, they could chime in
> > here.
> > Thanks Steve.
> > 73 de Boyd
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