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[aprssig] AutoResponders talking to AutoResponders

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Sun Oct 16 12:23:50 UTC 2011

The auto-reply in APRSISCE/32 doesn't do anything until a configurable 
"Inactive For" timer has expired since the last noted operator 
activity.  Then it turns itself on with whatever message you have 
configured.  BUT, it goes further with a configurable "No More Than" 
timer that will only send a single Auto-Reply to any messaging station 
once per that interval.  So, if someone sends you a few messages so that 
you'll see them when you get back in the shack, s/he gets a single 
auto-reply on the first message.  If they come back, say an hour later, 
and send you more messages, they'll again get a single auto-reply.  Oh, 
and I force an AA: in front of the configured message to give the 
receive a clue that this isn't a "normal" response.  (See also 

I've had (or tried to have) APRS messaging QSOs with mobile Kenwood 
operators where I'd get their auto-answer message with every single 
message I send to them.  And when that flood has finally stopped 
(considering a long original message broken into multiple parts for 
transmission), I'd get the "ok" from them.  Needless to say, the QSOs 
were short, and it had nothing to do with the difficulty of their typing 
of messages.

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

On 10/16/2011 8:11 AM, Bob Bruninga wrote:
> Oh, and as implemented in the original APRS's, the auto answer was automatically CANCELED as soon as OPERATOR activity was detected.  We just did not want them hanging around beyond an immediate need!
>> Autoanswer is something I dislike intensly.
>> We put it in there for SPECIAL use when for
>> example, one is at the EOC involved in an
>> event and has to step away for a few minutes.
>> Then and only then, an AUTOANSEWER message might
>> make sense.  ... "I'll be back at 1320".. for example.
>> It is an abomination to leave it on all
>> the time!  DUH!  APRS provides ACKS.
>> Bob, WB4APR
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