[Elecraft] K3 SO2R audio problem

Rob, I have a DX Doubler with a pair of K-3s and experienced the same problem you have noted. The fix is to go to the Top Ten website and build the audio isolator for each radio that is described. I believe that it is shown as an addendum. If you can't locate it, let me know. I built one

Re: [Elecraft] K3 SO2R audio problem

Clearly what I am hearing on the DXD is coming from stereo phones jack back into the DXD, or somehow getting created in the DXD. Monitoring the phones jack on the front panel I hear only clean stuff. Does anyone have any clues as to why the audio coming out of the stereo phones rear jacks

Re: [Elecraft] K3 SO2R audio problem

On 12/28/2010 6:21 AM, k...@aol.com wrote: The fix is to go to the Top Ten website and build the audio isolator for each radio that is described. I believe that it is shown as an addendum. If there is HUM (pure 60 Hz) as opposed to BUZZ (triplen harmonics of 60 Hz), it is magnetic coupling

[Elecraft] K3 SO2R audio problem

I have two K3s set up for SO2R using a DX Doubler. Each radio has the Top Ten cable for a K3 with a PTT, key, mic and phones plug on one end. When everything is set up and I plug my headphones into the DX Doubler's phones jack, I hear a bit of hum on the audio regardless of whether the audio