[aprssig] NE Illinois Balloon Tracks

Rick Green rtg at aapsc.com
Fri Jul 24 23:01:07 CDT 2009

On Fri, 24 Jul 2009, Steve Dimse wrote:

> On Jul 24, 2009, at 11:22 AM, Rick Green wrote:
>> I believe that a digi should be filtered so that it will digi only packets 
>> which originated within its defined 'service area', no matter what path was 
>> requested.
> This is not an appropriate solution. When a distant ham sends a message to a 
> local ham, the IGate sends the message along with the most recent position of 
> the distant ham. These packets MUST be digied to the local area, even though 
> they did not originate locally.
> There are many other examples, e.g. weather warnings, that do not originate 
> locally but which should be digipeated. You are suggesting using a nuclear 
> bomb to kill an ant! The solution is far worse than the problem...
   Well, actually, I consider the entire 'messaging' part of APRS to be 
totally broken and an inappropriate waste of bandwidth.  I won't digi 
message packets, even if they originate locally.

APRS is a broadcast telemetry protocol.  Any attempt to graft a 
point-to-point message onto a broadcast protocol is like carrying on a 
private conversation with bullhorns.  I won't do it.

Rick Green

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
                                   -Benjamin Franklin

"As for our common defense, we reject as false the choice between our
safety and our ideals."
                                -President Barack Obama 20 Jan 2009

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