[Elecraft] K3S goes Keydown

[KE8G]

Hi Dale,
Sounds like RF is getting in somewhere, somehow!  Have you noticed if it's band specific?  Frequency specific?

This happens to me once in a while, and then mysteriously disappears!

73 de Jim - KE8G
Sent from my iPad

> On Feb 3, 2017, at 9:18 AM, Dale Martin <kg5u at att.net> 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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