[Elecraft] K3 Transmit Timeout for Remote Operation

[Dana Roode K6NR]

I didn't get any response to my query below, but I have a solution in place
finally.  I'm no electronics wiz but I found some circuits and constructed
something based on a 555 that works nicely.  If any else is interested in
this, let me know.    Dana

On Fri, Aug 7, 2020 at 2:01 PM Dana Roode K6NR <dana.roode at gmail.com> wrote:

> I've been using my K3 remote for many years.  I'm using VNC to a
> controlling PC to operate the K3 and a variety of other equipment.  I have
> relied on an imperfect external solution to protect against runaway
> transmission.
>
> I've seen postings to the list over the years about a timeout that
> tracks when the PTT is on and triggers TX Inhibit if its on more than a
> defined length of time, resetting when PTT goes off.  Does anyone have a
> circuit for this to share or other suggestions?  I imagine a 555 timer or
> the like with the right interfaces to the K3.  I understand that some of
> the Remote Radio interfaces have this built in, but I'm not using them.
>
>   Dana
>
>