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[aprssig] Smart Tracker?

Wes Johnston wes at kd4rdb.com
Fri Mar 24 22:06:09 UTC 2006


Something I think folks have missed in all of this.... is that you _don't_ have to setup the smart pathing is for 3 hops max... One _could_ set it for 2 hop max... or one hop max.  Many of the examples I've seen here the past couple of days always refer to 3 hops but it could be less.

Wes

----- Original Message -----
From: Robert Bruninga <bruninga at usna.edu>
To: aprssig at lists.tapr.org
Sent: Fri, 24 Mar 2006 13:40:12 -0800
Subject: [aprssig] Smart Tracker?


> >This is the first section of my cross-country journey 
> >from Merrifield, VA to Austin, TX....At 55-65 mph, 
> >the Pocket Tracker "Smart Beacon" setup has been 
> >transmitting about twice a minute.
> 
> I donno, for a 2 hop tracker, beaconing every 30
> seconds is consuming at least 20% of channel capacity
> for that one mobile.  (360 digipeated packets in 30 
> minutes).  And at that speed and on the interstate
> everyone can pretty much  see where he is headed.
> 
> Lets see what a reasonable Proportional Pathing mobile
> with these default settings would get.
> 
>  1 min Path*:  DIRECT   
>  2 min Path:   WIDE1-1,WIDE2-1 
>  4 min Path:   none
>  8 min Path:   WIDE1-1,WIDE2-2
> 
> He would get 1 minute packets for close by and near-in
> Voice Alert Radar purposes, Typical internet updates 
> every 2 minutes and at least every 8 minutes if he goes 
> through a 3 hop area.  Total packt count to surrounding area
> is the same 6 every 2 minutes, plus an additional
> 8 every 8 minutes for a total of only 122 digipeated
> packets or about 1/3rd the load...
> 
> Just a thought.
> Bob
> 
> 
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