[Xastir-dev] FW: [nwaprs] Fwd: [aprsfi] X-APRS: a new protocol

[davidf4]

-----Original Message-----
From: nwaprs at googlegroups.com [mailto:nwaprs at googlegroups.com] On Behalf Of 
Bill Vodall
Sent: Saturday, April 01, 2017 8:48 AM
To: nwaprs at googlegroups.com
Subject: [nwaprs] Fwd: [aprsfi] X-APRS: a new protocol

Already picking up support...


---------- 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>



Hi,

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

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.

https://aprsdroid.org/xaprs/

I've also set up a service on the AMPRnet/Hamnet: telnet 44.139.11.254 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


> 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 44.139.11.254 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 |
> @APRSdroid
>

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