[Elecraft] KX3 Spur/Birdie on CW Receive

[James Bennett]

That should have been MFJ 1708B-SDR.

> On Jun 14, 2024, at 6:50 PM, James Bennett <w6jhb at me.com> wrote:
> 
> Folks - 
> 
> I’ve got my KX3 connected via an MFJ 178B-SDR switch to my computer running SDR++. This gives me a nice BIG pan adapter display on my monitor. Additional software syncs the KX3 with SDR++ and RumLogNG - a logging program. Anyway, When I have the KX3 in CW mode, I see a birdie or spur (not sure the actual name for it) about 500 Hz up from my zero-beat frequency. As I turn the KX3 dial, the spur mores right along with me. It is showing with a signal strength of about -79 db. Now I know that is a really low signal, but it does show up on the display and is a tad annoying. Actually, as I type this I’m on 10.116 and as I was testing, I find that there was a low level signal there, under the birdie. The fact it was being covered up bugs me a bit, too.
> 
> No matter what band I go to, my little “buddy” is there with me. If I switch to USB or LSB, it is gone - it only shows up in CW. And if I do CW-R, it switches to about 500 Hz below my frequency.
> 
> Anyone else have this? Is it something worth reporting to Elecraft, or is it a known “thing”.
> 
> 72, Jim / K7TXA