[Elecraft] K3 : Unstable freq during TX

[Ron D'Eau Claire]

First, confirm that you can hear it yourself on a monitor receiver, then try
a dummy load to eliminate "RF feedback" issues - they can be quite
frequency-sensitive! 

If it's still there, I'd first do the VCO Cal as Julian suggested.

Shoot, "tjouping" is a great description for slow, broad chirp. I'm American
and had a signal like that for a while in the 50's from a couple of rigs.
One was a WWII surplus Russian Tank Transmitter :-) 

Ron AC7AC

-----Original Message-----

Hello,

 

This evening I was warned by a friend that my signal sounded like an old
"Russian" station (sri guys), "tjouping" (I really don't know what other
word to use)

 

Details:

Release 3.14 / 2.16

Split operation (calling TX3A)

Sub RX OFF

RX 10.114,20 Mc

TX 10.118,38 Mc

Amplifier switched off,

Running 80 W

 

I used my second K3 to listen to my own signal.

During transmitting (10.118) I turned the Main RX dial and when moving away
from 10.114 the effect disappeared gradually. When moved 5Kc up or down it
was gone.

 

Any clue?

 

73's, Evert PA2KW

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