[aprssig] time for APRS second generation network?

[Curt, WE7U]

On Wed, 5 Jan 2005, Earl Needham wrote:

> At 10:50 AM 1/5/2005, Curt, WE7U wrote:
> >On Wed, 5 Jan 2005, Earl Needham wrote:
> ><snip>
> > >          Actually, the TNC (or, more properly, the AX.25 protocol) prevents
> > > this -- it only allows SEVEN hops, not eight!  <G>
> >
> >Version 2.0 of the AX.25 spec allows eight digipeaters.  Version 2.2
> >of the AX.25 spec only allows two.
> >
> >Perhaps some TNC's allow only setting seven, but the spec allows
> >eight.
>
>          What the heck?  We've had a seven-hop limit for YEARS.  What class
> did I sleep through???

I've been around packet for years too:  Built first TNC in early
'85.  Did software decoding of AX.25 frames before that with an
XR-2211 chip and a single interrupt pin into a uP.  It's amazing
what you can do when you're a poor college student who can't afford
a TNC.  ;-)

The 2.0 spec calls out eight max,  New spec calls out two.  I went
and looked again just to make sure.  You can find both specs on the
'net with a google search.

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