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[aprssig] Auto-Answer meets Auto-Responder (AVRS)

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Wed Nov 2 17:14:09 UTC 2011

But do the APRS RADIOS adhere to that spec?  Not from what I've received 
back from them when sending messages.  And if not, what good is the 
"standard" if you've got so many (unchangeable) devices out there that 
you can't count on it?

And us poor future developers can ONLY implement stuff that is WRITTEN 
DOWN SOMEWHERE!  (Yes, I'm shouting because I'm fed up with 
"requirements" and "specifications" coming up out of the BLUE!).

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

PS.  Please also read:


On 11/2/2011 12:20 PM, Bob Bruninga wrote:
>> do they send any kind of a tag that
>> would indicate that it was an auto reply?
> Yes, APRS requires that they begin any AutoAnswer with [AA].
> At least that is what the original APRS required and was agreed by the
> earlier authors.  Not sure it got into the formal spec.
> Bob, WB4APR
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