Re: Linux Packet Interface Hardware

[Jim Kusznir <jkusznir@xxxxxxxxx>]

It appears that the PacComm firmware (both the very old version I got
it with and the new one I paid $30 for last year) seem to have a bug
such that:

1) its not possible to leave KISS mode without doing a RAM reset (pull
battery or use the jumper)
2) When switching to KISS mode, all the parameters specified in the
non-kiss mode are ignored.  So I'm running with "default" tx delay,
etc.

This is partially why I thought I'd need to replace the ROM with a
KISS-specific ROM in order to configure some of these settings.

--Jim

On Wed, Jun 16, 2010 at 9:46 AM, Curt, WE7U <curt.we7u@xxxxxxxxx> wrote:
> On Wed, 16 Jun 2010, Jim Kusznir wrote:
>
>> I've been
>> using one at home in KISS mode for a while, and I've been noticing
>> what I think now is the T1 timer problem, and its been causing very
>> frustrating and massive reduction in throughput on my local 9k6
>> channel, even though my radio and the node are the only two on
>> frequency!  I often see my system try and send retransmits before the
>> first packet ever even makes it out the radio (but on the other hand,
>> I also think my TNC is sitting on packets way too long -- PacComm
>> Spirit-2).
>
> Tweak your KISS parameters.  If there are only two on frequency then
> you can increase your p-persistence quite a bit and perhaps decrease
> your slottime.
>
> --
> Curt, WE7U.                         <http://www.eskimo.com/~archer>
>   APRS:  Where it's at!                    <http://www.xastir.org>
>  Lotto:  A tax on people who are bad at math. - unknown
> Windows:  Microsoft's tax on computer illiterates. - WE7U.
> The world DOES revolve around me:  I picked the coordinate system!"
>
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