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[aprssig] APRS high speed

Patrick Green pagreen at gmail.com
Fri Mar 24 14:42:22 UTC 2006


I setup a Kantronics D4-10 with a Gracilis PackeTwin with APRSD running a
feed from all of Germany as a test and it worked fine.  The data rate was
3k8 on average and there was no problems sending posits in that busy of a
stream.  I was receiving this on my Kenwood TH-D7A which had no problems
keeping up.

73 de Pat --- KA9SCF.

On 3/23/06, Jason Rausch <jason at ke4nyv.com> wrote:
>
> In Virginia, a few of us played with 9600 with 900MHz
> as well as linking two VHF 1200 digis with a UHF 440
> 9600 link.  Our network wasn't busy enough to really
> get an idea of if it was beneficial or not.
>
> Jason KE4NYV
> www.ke4nyv.com
> RPC Electronics
> www.rpc-electronics.com
>
> --- scott at opentrac.org wrote:
>
> > Main problems here are that a higher data rate means
> > less energy per bit,
> > and GPS receivers don't usually output more than one
> > position per second
> > anyway.  A 1200 baud channel (assuming a continuous
> > transmission) can handle
> > a 5-hz update rate just fine, if you use a
> > reasonably efficient format.
> >
> > So the question is, what are you trying to
> > accomplish?
> >
> > Scott
> > N1VG
> >
> >
> >   _____
> >
> > From: aprssig-bounces at lists.tapr.org
> > [mailto:aprssig-bounces at lists.tapr.org]
> > On Behalf Of Andrew Rich
> > Sent: Thursday, March 23, 2006 1:38 PM
> > To: TAPR List
> > Subject: [aprssig] APRS high speed
> >
> >
> > Gudday
> >
> > Been looking at radar technology the last few days
> > and it begged me to ask
> > the question.
> >
> > Has anyone thought / played with APRS mobile at high
> > data rates ?
> >
> > The planes uses pulsed transmissions and very fast.
> >
> > On a much smaller scale i would like to play with
> > hooking the GPS straight
> > into a LIPD module and use that - range 100 m
> >
> > -----------------------------------------
> > Andrew Rich
> > Amateur radio callsign VK4TEC
> > email:  <mailto:vk4tec at tech-software.net>
> > vk4tec at tech-software.net
> > web: http://www.tech-software.net
> > Brisbane AUSTRALIA
> >
> >
> >
> > > _______________________________________________
> > aprssig mailing list
> > aprssig at lists.tapr.org
> >
> https://lists.tapr.org/cgi-bin/mailman/listinfo/aprssig
> >
>
>
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>
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