[aprssig] Fixing older KPC-3 Duping Digis!

[Tom Russo]

On Wed, Aug 31, 2011 at 01:48:27PM -0600, we recorded a bogon-computron collision of the <russo at bogodyn.org> flavor, containing:
> On Wed, Aug 31, 2011 at 12:44:02PM -0700, we recorded a bogon-computron collision of the <cap at cruzio.com> flavor, containing:
> > Still better, I think, for old digipeater Sysops to just add UIDigi WIDE1-1
> > in the Kantronics version KPC3-3F427265-8.2 TNC as previously recommended. 
> > http://www.aprs.org/kpc3/kpc3+82WIDEn.txt 
> > In practice, this certainly works well enough.
> 
> My bad.  It's the UIDIGI, not MYALIAS that these  KPC-3's in NM use as WIDE1-1.
> The ping-ponging issue, however, is still the problem that shows up, because
> UIDIGI doesn't do dupe checking.

I should also point out that the *real* issue is that not only do we have
these old TNCs that need this UIDIGI hack, but we also have very high 
elevation digis that provide redundant, overlapping coverage in the ABQ area.