From: jeff (avzdeumv@cuttingedge.net)
Date: Tue Jul 16 2002 - 23:23:13 EEST
You'll find it here:
http://www.tapr.org/tapr/html/Fax25.html
Riley Williams wrote:
>
> Hi Timothy.
>
> > Thanks for the information, I didn't realize that I would have to
> > work at that lower level. But I like challenges. I'm looking for a
> > book right now to get that will help explain some things to me, I
> > just wish there was one specific to AX25.
>
> There is a book specific to AX.25, although whether it is still in print
> is a good question. The book in question is "AX.25 Packet Radio Link
> Layer Protocol" and explains exactly how the AX.25 protocol works. Also,
> failing that, just remember that AX.25 is the LAP-B subset of the HDLC
> protocol that is defined by international standard, and one can work out
> the relevant details by referring to the HDLC standard and taking the
> LAP-B subset whherever a choice is presented.
>
> For a less technical (and probably much more understandable) approach, try
> http://www.rsgb.org/shop/acatalog/RSGB_On_Line_Shop_Packet___APRS_18.html
> or the equivalent on the ARRL website or your national society if it has
> one.
>
> > I still plan to work on the monitoring program, I had planned to get
> > to that lower level sooner or later but it looks like it will be
> > sooner. Thanks for the help and information. I have always used
> > other peoples programs before, but after a while I finally decided
> > to learn to do it myself just for the challenge and learning
> > experience. I appreciate all the replies. Thanks.
>
> No problem.
>
> Best wishes from Riley.
>
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