[Elecraft] KX3 anomaly, birdie transmitted

[John Kramer]

Thanks - yes, when I disconnected the EFHW wire antenna going to the KX3, then the birdie
that I could hear on my Flex radio disappeared. So it’s getting out through the antenna that
the KX3 is using

73
John



On 17 Mar 2016, at 4:45 AM, thelastdb <thelastdb at gmail.com> wrote:

Yes, that's the LO leaking out the antenna jack of the KX3. Set a menu function to RX ISO or some such. 



Myron WVØH
Printed on Recycled Data 
-------- Original message --------
From: John Kramer <jkramer at iafrica.com>
Date: 3/16/2016 8:20 PM (GMT-07:00)
To: Elecraft list <Elecraft at mailman.qth.net>
Subject: [Elecraft] KX3 anomaly, birdie transmitted

I have a newish KX3 factory built. I just noticed something odd with my KX3. I usually use my
KX3 for portable use so its not often in the shack, but yesterday I had my Flex radio’s 
connected to my SteppIR beam on 15, and I hooked up my KX3 to an EFHW wire 
which is about 100 ft away from my SteppIR. 
With both the Flex and the KX3 in receive mode on 15 meters, I noticed on the Panafall
display of my Flex rig, that my KX3 is transmitting a birdie about 700 Hz below it’s RX frequency. 
When I turn the dial on the KX3 I can see it moving up and down the band on my Flex radio. It is quite
strong, about 70 dBm.

Is this normal ? for the KX3 to put out a “birdie” 700 hertz below it’s displayed RX frequency ?

73
John, ZS5J
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