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[aprssig] Appalacian TRail and ham radio

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Sat Dec 20 22:09:34 UTC 2008

I would like to add that anyone that DOES hike the trail, please post 
(or send to the address above) your callsign and approximate hiking 
times.  Even if you switch to ATRAIL, I'd like to know when to look for 

I don't know how long FINDU or APRS.FI buffers data or how they'd handle 
the ping-ponging of multiple IDs, but I've got my own 7-day buffer 
running locally from which I'd like to analyze the tracked data.  I can 
even supply maps of your hike and the APRS infrastructure used by your 
tracking activities.  This would even apply to road-trips, so please 
contact me off-list (address above) if you're interested.

Bob - I suspect using ATRAIL may cause problems with the "speed limits" 
imposed by the APRS-IS infrastructure.  If two ATRAILs are hiking 
dramatically separated sections of the trail at the same time, the 
ping-pong would look like it defies reality and position updates may be 
rejected as "moving too fast".  Or is that a findu/aprs.fi feature and 
not the -IS infrastructure itself?

Lynn (D) - KJ4ERJ - Working on APRS infrastructure utilization visualization

Bob Bruninga wrote:
> And maybe some of you may go hiking over the holidays, so why not carry your APRS radio.
> HERE IS MY RECOMMENDATION: so that we get a nice data base with the least effort and the most fun:
> 1) SET MYCALL TO "ATRAIL" (only on the trail)
> 2) SET your own call in your status text
> 3) SET rate to 3 minutes
> 4) SET PATH to WIDE1-1,WIDE2-1
> 5) Enjoy all the hiking you want ON THE AT
> No matter how many of us do this, every dot will show accessibility, and although the "track" will pingpoing, the summation of DOTS will plot the accessible trail!
> It is imperative that the MYCALL of "ATRAIL" only be used when actually on the trail to avoid dots all over the place, going to and from the trail.
> Does anywone know if FINDU would retain all of these points? and for how long?
> Bob, WB4APR
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