K3 Flickering display

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K3 Flickering display

Keith Heimbold
I was operating last night on the K3 and while transmitting phone on 40m using my butternut HF6V the display on the K3 flickered and showed ALC on the LCD when it wasn't actually selected for displaying.  It happened everytime I transmitted.

I switched to 20m and my hex beam for a quick check and there was no flicker or any issue and also checked on 6m with my M2 and all was good.  I am wondering if this could be a RFI issue with the hF6V or could there be something amiss with the K3 on 40m.

My audio reports with the butternut are fine.  Just wanted to see if there have been anyone who has experienced this same set of symptoms.

Thanks for any perspective on this.

Keith
AG6AZ

Sent from my iPhone please excuse typos
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Re: K3 Flickering display

Tony Estep
On Tue, Feb 7, 2012 at 11:35 AM, Keith Heimbold <[hidden email]> wrote:
> ... the display on the K3 flickered and showed ALC on the LCD when it wasn't actually selected...
=========
Sounds like RF in the shack, Keith. Put lots of radials on the
vertical and a common-mode choke on the coax where it comes into the
shack.

Tony KT0NY


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Re: K3 Flickering display

Keith Heimbold
Tony,

Thanks. That is what i figured. Just wanted to check with the crew. It is an elevated with resonant radials and good grounding but probably need a better common mode choke on it.

Thanks,

Keith
AG6AZ

Sent from my iPhone please excuse typos

On Feb 7, 2012, at 9:53 AM, "Tony Estep" <[hidden email]> wrote:

> On Tue, Feb 7, 2012 at 11:35 AM, Keith Heimbold <[hidden email]> wrote:
>> ... the display on the K3 flickered and showed ALC on the LCD when it wasn't actually selected...
> =========
> Sounds like RF in the shack, Keith. Put lots of radials on the
> vertical and a common-mode choke on the coax where it comes into the
> shack.
>
> Tony KT0NY
>
>
> --
> http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352
> ______________________________________________________________
> 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
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