[Elecraft] K3 Possible Problem ??

[Joe Subich, W4TV]

> For some strange reason I am having an occasional problem where
> MMTTY will not unkey the K3 (Hangs). I have to go in and manually
> click the TX and then TX OFF in MMTTY.

Make sure that MMTTY (or any other software - including contest
software that wraps around MMTTY) is not using CAT commands (TX;
and RX;) and a port signal (RTS) at the same time.  *Disable* the
*software commands*.

The K3 *and many other radios* appear to have a race condition when
both hardware and software PTT commands are used at the same time
which occasionally leaves the transmitter "stuck on".

73,

    ... Joe, W4TV




On 2014-12-01 4:30 PM, Mike VE3YF wrote:
> Hi:
>
> The title should get your attention. I don't want to get into cross
> posting so hopefully someone has the same setup as me:
>
> K3 - MK2R+ - MMTTY
>
> For some strange reason I am having an occasional problem where MMTTY
> will not unkey the K3 (Hangs). I have to go in and
> manually click the TX and then TX OFF in MMTTY. This is an occasional
> glitch and I have no idea where to even look for what
> is causing the problem. However before upgrading to a K3, the system
> worked flawlessly, but don't want to blame the K3, just
> hoping someone has had this issue before.
>
> Also it is not an SWR or RF in the shack problem, even does it into a
> Dummy Load, and does it on all bands
>
> I am using FSK, I haven't had the time to dive into DATA-A.
>
> Any suggestions would be welcome before I start to pull my hair out.
>
>
> 73 De Mike
> VE3YF
>
> http://www.ve3yf.com
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