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[aprssig] TAPR Differential GPS Reference Station

Cap Pennell cap at cruzio.com
Wed Apr 22 01:11:25 UTC 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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