K3 : Unstable freq during TX

[Evert Bakker (PA2KW)]

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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[Julian, G4ILO]

Have you tried a VCO calibration?

[Evert Bakker (PA2KW)]

Hello Julian,

In the past (2x), but not lately.
I might do this again.
I'll first check it tomorrow and see if the problem is still there.

Thanks for the reply!

73's, Evert PA2KW

Julian wrote:

Have you tried a VCO calibration?

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