Paul,

I do not have any setup information relevant to the gear you are using, but you must obtain 4 bars solid with the 5th bar flashing on the K3 ALC meter. Failure to achieve that will result in no transmit or erratic power from the K3.

I have information on my website to aid you in setting the audio levels to achieve that target. Go to my website www.w3fpr.com and scroll down the left column to the last article and click to open the document.

I hope that helps.

73,
Don W3FPR

On 3/3/2020 12:22 PM, Paul GRANGER wrote:
Hi all
Maybe this has been asked already, but...
I am trying to configure my K3 so it can do FT8 with JTDX.
I know that, in the radio tab of JTDX, some people use K3, some people
use none.
What is/are the advantages/disavanteges of each ?
I have a MicroHam USB2 (no soundcard built-in), but I can of course
connect my computer directlyy to the K3 with 2 audio cables (both
stereo) without going through the MicroHam.

So far, I was ble to configure JTDX to receive, but after spending more
than 10 hours "playing" with the 10,000 setups involved, I am still
unable to transmit.
At some stage, I was able to key the KL3 to go TX, BUT no power output
at all.

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