On Wed, 2 Feb 2000, Jens David wrote:

> > So .. ok .. txtail is important. Couldn't we use some fixed (or computed)
> > value which couldn't be mis-configured ?
> Yes and no. With current available modem designs sure.

It could vary slightly even with currently available designs, depending
on signal generation delays (modem/sound card), how you apply the signal
to the modulator, and how quickly your ptt circuit operates.

Kai

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