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[aprssig] Linking digipeaters

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Tue Mar 8 14:08:56 UTC 2011


Restarting the machine may actually take the KPC-3+ out of KISS and back 
in or otherwise send commands to it the remedy the problem.   Testing 
has been done that when a KPC-3+ is in this mode, simply powering down 
and up will recover normal operation.  The issue has been exhibited with 
different software in use with the only common component being a KPC-3+ 
in KISS mode operating for an extended period of time.  When packet 
traffic gets heavy, the problem manifests sooner which may be why you 
hear reports of "it's never happened to me" from people running KPC-3+ 
in KISS in a low activity environment.

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

PS.  I'm familiar with the issue because WC4PEM to my west is (was) this 
installation and the trustee of that IGate restarts it weekly but sooner 
if I happen to notice packet delays coming through that gate.

On 3/8/2011 9:03 AM, Bob Bruninga wrote:
>> we have that XP machine set to restart every morning at 3:35AM.
>> It seems to not exhibit the problem once we added the restart
>> of the machine to the scheduled tasks.
> Hummh.  This suggests to me that the problem cannot then be in the KPC3?
>
> Bob
>
> From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On Behalf
> Of Randy Love
> Sent: Tuesday, March 08, 2011 7:30 AM
> To: TAPR APRS Mailing List
> Subject: Re: [aprssig] Linking digipeaters
>
>
> On Tue, Mar 8, 2011 at 1:21 AM, Keith VE7GDH<ve7gdh at rac.ca>  wrote:
> Wes AI4PX wrote...
>
> KPC3 KISS delay problem... if you cycle the power rather than pop it in
> and out of kiss mode, does that reset it as well?
>
> I don't know. I would assume so, but I have always exited KISS mode and
> then re-entered it. Anyone else?
>
>
> I would think so too. To me, the issue with the KPC3+'s holding packets
> seems to be some sort of buffer shift over time, or maybe a circular list
> that gets its offset decremented when it exceeds the number of individual
> elements in its array. Resetting the power should flush the buffers/memory
> and put everything back like it was. This is mostly speculation on my part.
> But we do have a KPC3+ running at our EOC that is accessed via AGWPE, and we
> have that XP machine set to restart every morning at 3:35AM. It seems to not
> exhibit the problem once we added the restart of the machine to the
> scheduled tasks.
>
> Randy
> WF5X
>
>
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