[aprssig] AVRS Online

Eric Hansen skyssx at gmail.com
Sat Jan 15 16:29:16 EST 2011

Another reason to enable AVRS to echolink -L; one could easily be set up to
run APRStt concurrently, enabling D-STAR/APRS calls to his callsign when
checked in at the link.

On Sat, Jan 15, 2011 at 3:21 PM, Lynn W. Deffenbaugh (Mr) <
ldeffenb at homeside.to> wrote:

> John Gorkos wrote:
>> Since the "?" is a directed message, the spec calls for AVRS to ACK the
>> original query message, and for the querying station to ACK the response
>> from AVRS.  AVRS is pretty stupid about ACKS right now.  It sends a message
>> with an integer 3 digit message ID, and listens for 10 seconds for your ACK.
>>  If it doesn't hear an ACK, it sends the message again, two more times, with
>> 10 second intervals.  It will never send more than three messages.
> I don't believe directed messages MUST be sequenced (ack requested).  And
> the conditions of the message sent TO AVRS doesn't drive any particular
> requirements on what AVRS will put into the message it sends in return.  I
> just tested it again and my "?" was answered even though it was sent without
> asking for an ack.  This is as I would have expected it to be so no
> additional discussion is necessary from my point of view.
>  I think my last answer to Lynn might have answered this, also, for
>> Echolink I only use -R (repeater) nodes.  For IRLP, all IDLE nodes are
>> valid.
> Any particular reason for not using -L nodes?  In my location, all of the
> -R EchoLinks are 440 and the sole 2m is a -L link.  However, that link is
> just as good as a repeater (IMHO) as the owner keeps it open and supports up
> to 10 concurrent connections.  He's also an IRLP node, so I have the best of
> both networks available in my local area on 2m, but you're currently
> skipping over the EchoLink capability.
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
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