TXD QSD fixed?

[briancom]

I wonder if the QSD keying problems when TXD was set >8 ms has vanished
with the new synthesizer boards?

It sounds OK in the monitor when using an external keyer at TXD 20 ms.
But I've yet to get an over the air opinion.  I seem to recall one could
hear it in the monitor.

73 de Brian/K3KO
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[Bob Wilson, N6TV]

Setting CONFIG:TX DLY to 20 ms will shorten the first element (dot or dash)
by 20 ms (about).  If you're using QSK, it will shorten *every* dot or dash
by that amount.  The new KSYN3A synthesizers do not change this.  Setting
CONFIG:CW QRQ ON will make the TX delay much shorter (how much shorter is
not well documented, but it is significant).

The length of a dot, in milliseconds, is 1200 / speed in WPM.  So at 40
WPM, a dot is only 30 ms long, and you'll be removing 2/3rds of it with TX
DLY 20 (but you may not hear this in the monitor).

What amplifier are you keying with the K3 that requires such a long TX
Delay to avoid hot switching?

73,
Bob, N6TV

On Mon, Aug 7, 2017 at 9:53 AM, brian <[hidden email]> wrote:

> I wonder if the QSD keying problems when TXD was set >8 ms has vanished
> with the new synthesizer boards?
>
> It sounds OK in the monitor when using an external keyer at TXD 20 ms. But
> I've yet to get an over the air opinion.  I seem to recall one could hear
> it in the monitor.
>
> 73 de Brian/K3KO
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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