[aprssig] WIDEs

[Curt, WE7U]

On Wed, 5 Jan 2005, Robert Bruninga wrote:

> Curt, you dont understand callsign-substitution.

Actually, it's not the callsign-substitution that is fuzzy here,
it's what the digi does with the "digipeated" bits and the
already-digipeated/substituted callsigns.


> Once a digi's own call shows up anywhere in the path,
> it will not ever digipeat that packet again.  Period.
> Thus, it will not ping-pong.

I'm glad of that, but I didn't think that was the case.  As I
understood it they ignored all but the first digipeater slot that
didn't have the has-been-digipeated bit set.  In other words they
never did a compare between any of those fields and the callsign of
the digi.


> But it will digi other copies that went via other
> digis before it got to it.  Yes, those are dupes, but
> the only radiate outward.  They cannot come back
> through this digi in "ping-pong" fashion.  Bob

I believe I've seen it happen recently.  I think it was a kpc3 or
kpc-3+ that did it.  I might be able to check through my logs at
home to find an example of it on local RF.

--
Curt, WE7U.   APRS Client Comparisons: http://www.eskimo.com/~archer
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