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These are examples of files that I put in /etc/ax25 and elsewhere on the system.
Typically I build APRS digipeaters using the following pieces:
1. Fedora Core Linux. Most of the necessary amateur radio packages are
in the standard or "extras" distros. Make sure you have a kernel
with the optional mkiss.ko kernel module available. The default
kernel distro doesn't include it, but there's a
kernel-modules-extra RPM that does.
2. Thomas Sailer's soundmodem. This involves getting your soundcard
properly configured, etc. I've successfully used this with
motherboard and PCI soundcards on random old PCs and with Dell R200
servers (overkill!) and *good-quality* (expensive) USB sound cards
(on a fast USB port). I generally build a serial PTT cable to use
with soundmodem on newer machines and use an LPT port parallel PTT
cable on older machines that have one.
3. My aprsdigi for the RF digipeater. It can actually do multiport RF
gatewaying, IPv6 multicast and other crazy stuff you'll never use.
4. Dale Heatherington's aprsd for APRS-IS functionality.
5. beacon (part of ax25-tools) to beacon my digipeaters location. I'm
a strong believer in not reinventing the wheel, so I used the
existing beacon tool instead of adding beaconing to
aprsdigi. Aprsdigi does, however, meet the US FCC requirement to
transmit its callsign once every 10 minutes within the last time it
transmitted, so if you want to run a stealthy digipeater, feel
free to not use beacon!
I use cobbler to automate and replicate building multiple APRS
digipeaters, D-STAR gateways and so on based on a Fedora Core
distribution. Aprsdigi will run on any Linux x86 distro, I just happen
to have been using Fedora Core from back in the day when it was just
called Red Hat after I switched from Slackware.
The files in this directory are:
README.examples this file
aprsdigi.conf is sourced by the systemd aprsdigi.service file to
configure aprsdigi and a beacon. It basically sets
some environment variables that contain the aprsdigi
and beacon command line opts.
axports is the ax25 port file.
aprsdigi-fc17.ks is a Cobbler kickstart file which I use to automate
building aprsdigi PCs. It may be useful just to see
which packages I include, what tweaks I make to the
standard Fedora Core distro and so on (e.g. disabling
root ssh login).
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