[Elecraft] K3S birdies?

[Don Sayler]

Thanks Victor.

I'll check that out.

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Victor Rosenthal
4X6GP
Sent: Tuesday, April 10, 2018 11:33 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3S birdies?

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
> 
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