[aprssig] Path Precedence

Peter Devanney pdevanney at sympatico.ca
Thu Jul 22 13:29:53 EDT 2004

So can I aasume that the safe path would be


SAR in this case is a special digi that only exists for a short time and is in a special place - like at the top of a hill in a SAR operations area- and only digi's those portables/mobiles with SAR in the right place in the path. When the SAR is over the digi goes home and its alias is reprogrammed to act as a normal home RELAY only digi.

What I am trying to do is set up a path in the trackers that will work when the SAR digi is in place but that will also work normally when it is not in place - without having to re program the tracker path.

So again, would RELAY,WIDE2-2,SAR be the way to do this?

I am learning a lot here!

> From: "Curt, WE7U" <archer at eskimo.com>
> Date: 2004/07/22 Thu PM 12:23:07 EST
> To: TAPR APRS Mailing List <aprssig at lists.tapr.org>
> Subject: Re: RE: [aprssig] Path Precedence
> On Thu, 22 Jul 2004, Peter Devanney wrote:
> > Bear with me while I get my head around this,
> >
> > What happens if a RELAY is not within range of my station, but a
> > WIDE is. With a path of RELAY, WIDE2-2 will I still get digi'd by
> > the WIDE?
> Only if the wide-area digi also has RELAY enabled as one of it's
> aliases.  Most do.  I think the LA basin is one area that I've heard
> doesn't enable RELAY on their digi's.
> > Or if I set my path as SAR,RELAY,WIDE2-2 (SAR is only on 1 digi).
> > If I am within range of SAR I get digi'd by SAR and then possibly
> > a relay and so on...
> >
> > If I am not within range of SAR but am within range of a RELAY,
> > will I get digi'd by the RELAY and then the WIDE...
> Nope.  It'll see the unused "SAR" slot and drop the packet.
> You're certainly asking the right questions!
> If you are running a smart digipeater like Digi_Ned, I think you
> could get that last digi operation to work.  Is that right Bill?
> --
> Curt, WE7U			         http://www.eskimo.com/~archer
> "Lotto:    A tax on people who are bad at math." -- unknown
> "Windows:  Microsoft's tax on computer illiterates." -- WE7U
> "The world DOES revolve around me:  I picked the coordinate system!"
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