[aprssig] KPC-3+ KISS mode delayed packet issue?
mcheavens at usa.net
Fri Dec 19 12:17:39 CST 2008
This has been seen before on KPC-3+'s. It is not a time delay, but a
buffer issue. First in First out.
It is annoying, I use only TNC-2's with KISS roms in them for
computer connected TNC's.
At 11:33 AM 12/19/2008, you wrote:
>I seem to recall reading here some time back that there was some bug in
>the KPC-3+ in KISS mode that could cause it to screw up and hold packets
>for some reason.
>I'm seeing some very strange delayed packets in my local environment, and
>since I'm running a KPC-3+ in KISS mode I'm wondering if it's my fault.
>What it seems to be is that packets I am transmitting seem to be getting
>digipeated 10 minutes or more later. My logs show my transmitted packet
>going out to the TNC, then sometime soon after a digipeat of a much older
>packet coming back. My current guess is that my packets are being held at my
>TNC until my next transmission or something (this rings a bell about the KPC
>holding until a buffer is full or something like that). I want to fix it if
>that's what's going on.
>Could someone refresh my memory about:
> 1) what the actual issue is that can cause KPC-3+ KISS-mode TNCs to hold
> off transmitting packets for as much as 10 minutes, if there is in fact
> such an issue
> 2) The correct way to fix it (is it as simple as power-cycling the TNC?)
> 3) The best way to avoid the problem in the first place, if it is in fact
> my system that's causing the delay.
>Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/
>Tijeras, NM QRPL#1592 K2#398 SOC#236 http://kevan.org/brain.cgi?DDTNM
> In some cultures what I do would be considered normal.
> -- Ineffective daily affirmation
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