[aprssig] Interesting APRS RF Behavior at Dayton....

Stephen H. Smith wa8lmf2 at aol.com
Sat May 17 11:47:10 CDT 2014


On 5/17/2014 12:05 AM, Fredric Moses wrote:
> And that’s why we put a device there…  We have for the past 4 hamventions put different style devices in and recorded traffic to compare after the fact loading and just how well “x” did…   The “digi” is a direct only with a viscous delay so that it would only digi a station it heard direct only if it wasn’t already digied by an outside station…
>
> The -14 also logs all traffic to a log file no matter if it digied or made it to aprs-is..  As that’s one of it’s missions is to just see how well it RXed in the hostile environment of hamvention.  And from inside the arena itself.   Myself and Mr.Love manage a very large APRS network in michigan we put up temporary dig’s for events and experiment with different setups/devices…  Just look at our garages and the amount of APRS gear we have… Second thought don’t.. our wives might start to wonder…
>
> I tried to open your events map but was getting a server not found… How are you getting your “RF” activity from around the arena.. where is your receiver located?  Or are you just filtering apris-is feed?
>
> --
> Fredric Moses - W8FSM - WQOG498
> fred at moses.bz
>


The hard disk on my special events server (separate machine from my main 
HF-VHF-ISS Satgate UI-Webserver setup) expired sometime between 2AM and 8AM EDT 
today. Woke up this morning to see the server completely dead.

I just changed out the hard disk for another that had an identical setup.  The 
special event server is now back on the air (or rather on the Internet).

The setup is using just an Internet feed from first.aprs.net filtered for a 6- 
mile (10 KM) radius around the Hara Arena Hamvention venue.   I've also 
underlaid a greatly-improved aerial photo beneath the Precision Mapping road 
layers since the restart.

Again, take a look at:

     <http://wa8lmf.net/map> and click on the "Special Events" link.

 From time to time, I will zoom the display out for a larger area view that 
includes the motels along the two major Interstate highways, especially after 
the venue closes, around 6:00 PM.

____________________________________________________________


--

Stephen H. Smith    wa8lmf (at) aol.com
Skype:        WA8LMF
EchoLink:  Node #  14400  [Think bottom of the 2-meter band]
Home Page:          http://wa8lmf.net


  Long-Range APRS on 30 Meters HF
     http://wa8lmf.net/aprs/HF_APRS_Notes.htm

High Performance Sound Systems for Soundcard Apps
    http://wa8lmf.net/ham/imic.htm
    http://wa8lmf.net/ham/uca202.htm

"APRS 101"  Explanation of APRS Path Selection & Digipeating
   http://wa8lmf.net/DigiPaths





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