[Elecraft] K3 - qsk keying loop

[Barry N1EU]

Thanks Don.  Although TX Inhibit is described in the latest C1 version
of the manual, I missed it because no mention is made of using it for
qsk amp control.  It would have been nice to make +5V available on the
AUX I/O connector for the pullup wiring.  Also, I'm not sure why the
manual text refers to the "ACC" labeled connector as "AUX I/O" -
shouldn't this be consistent?

I believe there's an omission in the manual - TX INH is not listed in
the CONFIG menu section and I believe it should be.

73,
Barry N1EU

On 11/28/07, Don Wilhelm <w3fpr at embarqmail.com> wrote:
> Barry,
>
> Something was added to provide a "TX inhibit until PTT" function.  That
> discussion was late in the Field Test cycle.  I was involved on the
> sidelines of the discussion even though I was not a field tester.
>
> The bottom line is that it is "in there", but I have not combed the
> latest documents to determine where it is.  Look through all the menu
> items related to keying.
>
> 73,
> Don W3FPR
>
> Barry N1EU wrote:
> > I'm surprised to notice no provision for tx enable/inhibit signals
> > (qsk keying loop) on the K3.  I'd appreciate hearing comments on why
> > this wasn't part of the design and what the timing safeguards are in
> > the existing "key out" signal to prevent hot switching on make/break.
> >
> >
>