K3 Possible Problem ??

[Mike VE3YF]

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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[Joe Subich, W4TV-4]

> 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
> ______________________________________________________________
> 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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[Mike VE3YF]

Well I might have the problem licked. On the advice from Joe & Bill,
blanked out the command lines in MMTTY. Only ran a few quick tests
and no hanging etc problems. Now to
go and work some RTTY on air to see if in fact the problem is gone.
Tnx Agn Joe and Bill.


73 De Mike
VE3YF

http://www.ve3yf.com
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