Fwd: [aprsfi] X-APRS: a new protocol

Michael Sterba ars.kg7hq at gmail.com
Sat Apr 1 09:14:16 PDT 2017

Hmmmm.... XMPP??? As in jabber? It's the a Wetnet opportunity to play in
our future?

I'll have to keep my eyes open for APRSDroid V4.1.

On Apr 1, 2017 8:48 AM, "Bill Vodall" <wa7nwp at gmail.com> wrote:

APRS takes a step forward...

---------- Forwarded message ----------
From: Heikki Hannikainen <hessu at hes.iki.fi>
Subject: [aprsfi] X-APRS: a new protocol
To: aprsfi at googlegroups.com
Cc: Georg Lukas <georg at op-co.de>


I fully support the new X-APRS protocol initiative, it just plain makes

Experimental services are already live on aprs.fi, with IPv6 and load
balancing. "telnet xaprs.aprs.fi 20482" to see the convenient, easy-to
parse and lightweight data stream.


I've also set up a service on the AMPRnet/Hamnet: telnet 20482

With a little effort, I'm hoping we could phase out and turn off the
legacy APRS-IS services by the end of this year.

- Hessu

On Sat, Apr 2017, Georg Lukas wrote:

> Hi all,
> in the past I've often realized that APRS-IS does not work well with
> mobile TCP/IP - latency on 2G or 3G causes delays that skew the position
> reports; interruptions in the data connection are almost impossible to
> detect at application level, and thus cause packet drops, etc.
> On the other hand, with my other project (yaxim, a mobile client for the
> Extensible Messaging and Presence Protocol / XMPP), all of these
> problems have been solved years ago. Now I have come to the conclusion
> that APRS and XMPP have many things in common:
> - They are both network protocols to send real-time GPS and message
>  packets.
> - They are mainly parsed by computers and displayed in a processed form.
> - Both have a vast network of distributed servers to distribute data.
> - For both, there are sophisticated web interfaces available.
> - etc.
> Therefore, I decided to bring together the best of both worlds and
> created X-APRS: a revival of APRS based on the XMPP protocol.
> You can find the protocol specification with color-coded examples here:
> https://aprsdroid.org/xaprs/
> Starting with the upcoming version 1.4, APRSdroid will only support
> X-APRS over TCP/IP and HamNet, and legacy ARPS will be slowly phased
> out.
> However, this should not be a problem, as the new protocol will also be
> supported by aprs2net and aprs.fi (expect separate announcements soon).
> Client and server developers are encouraged to jump in and implement the
> protocol, using one of the many available XMPP libraries.
> You can have a peek at the data stream by issuing one of the following
> commands:
>         telnet xaprs.aprsdroid.org 20482
>         telnet 20482
> 73 from Germany,
> Georg DO1GL
> --
> APRSdroid - Open Source APRS Client for Android | http://aprsdroid.org/m
> https://play.google.com/store/apps/details?id=org.aprsdroid.app |
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