[arm-allstar] Using Allstar as a digital voter system

[David McGough]

Steve,

Yes, I've seen this XIPAR feature mentioned in years past.  Has anyone out
there ever used it? If so, how did it work?

For basic RX voting, the sophistication of an RTCM (w/GPS) shouldn't
really be needed---the timing available from Linux should be more than
adequate, realistically the timing quality being limited by the 48KHz
sampling rate of the sound fobs....So, I would *think* you should be able
to vote with 1 or 2 milli-second accuracy (or better)???  Something to
ponder.



73, David KB4FXC



On Fri, 2 Aug 2019, "Steve L via ARM-allstar" wrote:

> Steve, W9SH had a "simple voter" that required no hardware.  I was
> always tempted to give it a try.
> 
> His site is down, and I am not where he is these days in terms of development:
> 
> https://web.archive.org/web/20170306120829/http://www.xelatec.com/xipar/simplevoter
> 
> On Fri, Aug 2, 2019 at 3:55 PM "Doug Crompton via ARM-allstar"
> <arm-allstar at hamvoip.org> wrote:
> >
> > Here is a link to the RTCM which as far as I know the only current device
> > that would interface the remote sites to the main repeater site. You are
> > right the cost per site would be the RTCM plus GPS and of course you need
> > Internet at each site. The receivers also need to be level and passband
> > equalized (matched) for it to perform properly.
> >
> > http://206.212.254.21/unode_docs/rtcm_%20manual.pdf
> >
> > There is probably other info out there on this. I just did a quick search.
> >
> >
> > *73 Doug*
> >
> > *WA3DSP*
> >
> > *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
> >
> > On Fri, Aug 2, 2019 at 3:18 PM "Mike Sullivan via ARM-allstar" <
> > arm-allstar at hamvoip.org> wrote:
> >
> > > I figured I was missing something. Is the RTCM the only interface that
> > > reliably supports it? At $269 apiece, that's gonna hurt the wallet, on top
> > > of setting up the PtP linking to make it work standalone.
> > >
> > > Is there a Howto? That would probably brush up my questions on it.. lol.
> > > Mainly, I'm assuming each receive radio needs an RTCM, as well as the
> > > repeater receiver? We are upgrading our 2 meter machine with an amplifier
> > > and new (to us) hardline, once that is done we're hoping to put a couple
> > > receivers up to cover dead spots and improve handheld reception. We're also
> > > probably going to put up a couple Allstar-linked 440 machines at those
> > > sites too, for local coverage.
> > >
> > > Mike
> > >
> > > On Fri, Aug 2, 2019 at 13:55 "Doug Crompton via ARM-allstar" <
> > > arm-allstar at hamvoip.org> wrote:
> > >
> > > > Voting has been part of Allstar for years and is included in the hamvoip
> > > > release. You need hardware to do it - typically an RTCM and GPS.
> > > >
> > > >
> > > > *73 Doug*
> > > >
> > > > *WA3DSP*
> > > >
> > > > *http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
> > > >
> > > > On Fri, Aug 2, 2019 at 1:53 PM "Mike Sullivan via ARM-allstar" <
> > > > arm-allstar at hamvoip.org> wrote:
> > > >
> > > > > I'm curious, has anyone ever thought of, or attempted a voter type
> > > system
> > > > > using Allstar? I.E. using Allstar as local nodes to several receivers,
> > > > > digitally analyzing signal strength, and Allstar picking the strongest
> > > > > signal to pass on to the repeater? Would be an interesting and
> > > > inexpensive
> > > > > concept, I would think.
> > > > >
> > > > > Or, am I an idiot and just missed the Howto on that?
> > > > >
> > > > > Mike
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