[aprssig] Re. Another Clueless Balloonist...(RATE!)

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Mon Mar 17 12:57:08 EDT 2014

Analysis of the raw packets seems to indicate that KF6RFX-3 was 
experimenting with Proportional Pathing 
(http://www.aprs.org/newN/ProportionalPathing.txt) and was also using 
Mic-E encoding.  Packets were going out with no path, WIDE1-1, and 
WIDE1-1,WIDE2-1 if I saw it correctly.

To see ALL raw packets as received by APRSISCE/32 IGates during the 
flight, see:


To see plots of the RF and (dupe-suppressed) APRS-IS packets for these 
two stations, see:


(a picture-laden posting of this with more detail is awaiting moderator 

Lynn (D) - KJ4ERJ - APRS Infrastructure Visualization

On 3/17/2014 9:53 AM, Robert Bruninga wrote:
>     >> change from WIDE1-1,WIDE2-1 to either WIDE2-1 or NO
>     >> path, which is the ultimate best path setting.
>     >The problem is not the path, it's the 10s beacon rate...
>     > ...not significantly worse for the local network than, say,
>     > someone who leaves their tracker on while shopping
>     > for an hour or two.
> True.  And even though it is 2 hops, it still only gets digipeated 
> once and only once by each digipeater whether it hears the first hop 
> or not.  At a 1 minute rate, it should be no different than just 
> another local mobile.
> The fact that it hits every local area over 10 states does not make it 
> any worse for any given local area.  It is still just like one more 
> mobile for a few hours.
> But the RATE is ABOMINABLE!!  SImply no reason for packets more than 
> once a minute for something like a balloon which does not make sharp 
> turns!  And besides, keeping the rate at 1 minute saves battery power, 
> hence, weight, hence helium, etc.
> Bob, Wb4APR
>     -Jason
>     kg4wsv
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