[Elecraft] K3S birdies?

[Victor Rosenthal 4X6GP]

Make sure the internal cables with the little TNC connectors are all
seated properly. A poor shield connection can contribute to birdies. 
Oxidation or vibration could create this condition over time.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/

On 11 Apr 2018 05:47, Don Sayler wrote:
> Hi All.
> 
> I've been monitoring this list for a while, and have gained some
> useful insights from the posts. And now I have a question...
> 
> I built my K3S #11310 last July, and I added the 100 watt amp and
> sub-receiver last December.
> 
> A few weeks ago, I started hearing some unusual tones around 14380
> KHz and 7259 KHz. The tones are much louder on 14380 than on 7259. At
> 14380, I hear a lower-pitched tone on 14279.80, and a higher pitched
> tone 14279.85. I hear both of these with no antenna connected. On
> 40m, the tone is quiet enough that the background noise overcomes the
> tone. But on 20m, the tones are quite loud. I also hear the tones on
> the sub-receiver.
> 
> Prior to a few weeks ago, I'm certain these tones were not present. I
> saw the thread from 2012 about moving cables around in a K3, but if
> there was a build problem, wouldn't these sounds have appeared
> immediately? My routers are far away from my shack, and there is no
> new equipment in the shack.
> 
> Any thoughts?
> 
> Thanks.
> 
> Don Sayler W7OXR Kirkland WA
>