[aprssig] Beta-quality APRS device statistics
Stephen H. Smith
wa8lmf2 at aol.com
Wed May 19 14:08:24 EDT 2010
Heikki Hannikainen wrote:
>
> I wonder if this has been done before? APRS device / software
> popularity over 7 days (11th to 17th May, 2010):
>
> http://aprs.fi/doc/DeviceID-2010-05-11-17.txt
>
> The data is possibly quite inaccurate until some detections are fixed.
> It's also easy to fake this, and many devices have obviously wrong
> destination callsign settings. Please let me know if devices are
> detected incorrectly *and* you know *how* they can be identified (it's
> impossible for many devices).
>
> Thanks,
>
> - Hessu
>
>
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Very interesting............
For your information:
* New destination of "APSK63" is being generated by the APRS
Messenger APRS-over-PSK63 program now being increasingly used on
30 meters HF. Full details on this new APRS mode here:
<http://wa8lmf.net/APRS_PSK63/
* APTIGR is used by Tigertronics Tigertrack tracker (device similar
to a TinyTrack). I have used one on on 30M HF conventional AX.25
FSK APRS for about 7 years now.
------------------------------------------------------------------------
If your statistics are even remotely correct, it's interesting to note
that the top 10 originators of APRS packets by vendors are HARDWARE
devices (trackers, Kenwood radios, etc), rather than computer programs,
with the exception of UIview and "Open Source" (which I presume means
Xastir)..
I'm guessing the vast majority of users are now moving to hardware-only
sources, probably overwhelmingly transmit-only. I would further posit
that these same users are probably using the Internet sites findu,
APRS.fi, etc) to see the results of their transmissions, rather than run
local software for off-the-air receive.
(In my experience, even the potentially two-way hardware devices like
Kenwood radios, are used mainly as self-contained plug-and-play
transmit-only trackers. Interactive messaging on these devices is just
too clunky and distracting to use in a mobile environment.)
In other words, like it or not, APRS *has* become primarily an AVL system.
One class of stations that would seem to "fall through the cracks" in
this analysis is Kenwood radios connected to mapping GPSes like the
AVmap, or Tracker 2s connected to Garmin Nuvis that would appear to be
only trackers, but ARE capable of full mapping displays or even
interactive messaging.
------------------------------------------------------------------------
--
Stephen H. Smith wa8lmf (at) aol.com
EchoLink Node: WA8LMF or 14400 [Think bottom of the 2M band]
Skype: WA8LMF
Home Page: http://wa8lmf.net
NEW! *** HF APRS over PSK63 ***
http://wa8lmf.net/APRS_PSK63/index.htm
Universal HF/VHF/UHF Antenna Mounting System
http://wa8lmf.net/mobile/UniversalAntMountSystem.htm
"APRS 101" Explanation of APRS Path Selection & Digipeating
http://wa8lmf.net/DigiPaths
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