[aprssig] Documenting the APRS Generic Digipeating spec?

[Jim Alles]

I found this, It looks like Pete did it!

PDF attached
<https://www.tapr.org/pdf/DCC2005-EliminatingDigipeaters-AE5PL.pdf>

Regards,

Jim A.

On Thu, Jan 5, 2017 at 3:18 PM, Robert Bruninga <bruninga at usna.edu> wrote:

> APRS Authors:
>
>
>
> We all came up with the “Generic-digipeating” concepts for APRS in 1995 or
> so and is pretty well established in most modern TNC’s
>
>
>
> But its been so long and maybe I am having a senior moment, but I am
> drawing a blank in trying to think where it is actually documented in
> AX.25!??  The APRS spec only addresses the data formats (and the use of the
> AX.25 Destination callsign field in its non-standard way).  The APRS spec
> (I don’t think) addresses any of the generic digipeating techniques used.
>
>
>
> I think we need to nail this down by spec, since there are some weird
> implementations that cause confusion.  And if there are new ideas we want
> to add, then we should have a documented baseline starting point.
>
>
>
> We could call it AX.25-UI for clarification.
>
>
>
> My source for how this all works is my decade old
> http://aprs.org/fix14439.html web page.
>
> Is there another better starting point for extracting exactly what UI
> digipeating is?
>
>
>
> Or am I having a senior moment?
>
>
>
> Bob, WB4APR
>
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>
>
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