[Elecraft] K3S goes Keydown

[Dave Cole]

Are you by chance running an end fed wire?

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 02/03/2017 07:18 AM, Dale Martin wrote:
> I've been operating my new K3S for about 2 months now and love it.
>
>
>
> Last week, however, something unexpected happened: as soon as I keyed the
> paddles or hit f1 to key the radio (CW), the radio went keydown. Only by
> running the power down below 50-70 watts does it finally key up.
>
>
>
> It has happened a number of times since then. However, it doesn't happen all
> the time.
>
>
>
> I've disconnected extraneous cables, moved power supplies and computer and
> cables. No change. I've reattached cables, relocated equipment back to where
> it was. Again, no change. Nothing seems to make a difference.
>
>
>
> It is also very sporadic. I can sit down and operate without an unexpected
> keydown event. Other times, I can sit down and bang, it's gone key down and
> I've got to run the power down to operate.
>
>
>
> Until last week, it never happened before. As I said, no changes have been
> made to the station: equipment  configuration and positioning, cable
> routing, antenna SWR/orientation, etc.
>
>
>
> My next step is to find my box of ferrites and start clamping them on
> cables-I've never had to do that at this station for any of the five radios
> I've ever used here over many years. I figure if any of my past radios were
> RFI susceptible it would have been my OMNI VI's. But I never had an
> RFI-issue with them.
>
>
>
> Any ideas?
>
>
>
> 73,
>
> Dale, kg5u
>
>
>
>
>
>
>
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