Linux-Hams archive - June 1997: Re: Txtail

Re: Txtail

Richard Adams (ifkgm.ockfvg@futuresoft.com)
Mon, 9 Jun 1997 17:07:45 +0000 (GMT)


According to John Ackermann AG9V, While burning my cpu.:
>
> In message <fryslzmd@konicabt.com>, Jonathan
> Naylor writes:
> >TXTail wow !
> >
> >According to the original KISS specification from 1987 the TXTail KISS
> >parameter was ... "This command is obsolete, and is included here only for
> >compatibility with some existing implementations". I would guess they
> >mean the TNC-1 KISS implementation.
> >
> >You shouldn't need TXTail and the fact that the KPC-3 isn't responsing
> >just goes to show that they were serious about it being obsolete.
>
> Actually, I've found at least one situation where TXTail is a useful --
> even critical -- parameter. With the Ottawa PI card running in internally-
> clocked mode, you need to set a TXTail of about 2 milliseconds (when using
> 19.2kbps), or else the end of the packet (not sure if it's the terminating
> flag, or the FCS field) gets chopped off.
>
Same goes for a PA0HZP scc card.

> I've never had to worry about it when using a KISS TNC, though.
>
> John
>

-- 
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