[Elecraft] K3 and JT65

[Jim Brown]

On 4/26/2012 10:31 AM, Jim Miller KG0KP wrote:
> Yes, my cfglineout was set to "nor 005" and turning it up to 20 brought the
> signal up considerably and continuing up made snow appear in the background
> so backed it down.

Note that in Windoze, there are TWO Sound Mixers.  The RECORD mixer 
Selects the input to the computer that is used to DECODE a digital 
signal.  The PLAYBACK mixer MIXES various computer sources and sends 
them to the radio as modulation.  The two mixers are accesses from the 
Options tab.

The Master Fader in the Playback mixer should be set to full output.  
The WAV Fader should be set to roughly half way up. All the other faders 
should be muted.

The Record Mixer should select the input that you're using. As someone 
else suggested, make sure that the internal mike is not switched on. Go 
to the Mic section, select Advanced or any other tab around the Mic 
fader, and check the settings.

As others have suggested, when you have JT65 sending TX tones, you 
should hear them if you plug headphones into the output (and on laptop 
speakers, if you're using a laptop.  If you hear the tones, proceed to 
the radio.

At the radio, you need SOMETHING to make it transmit.  Some use PTT, but 
I use VOX.  One common simple thing is that you may need to adjust the 
VOX level to make it transmit. That's on the CONFIG "short push" menu.   
To adjust it, make sure the computer is sending tones and advance the 
VOX gain until you start transmitting.  Also, you may need to increase 
the Line Input gain. When you're in a Digital mode, the front panel Mic 
Gain pot adjusts the Line Input gain.

There are MANY guys using a K3 for JT65, and everything works great once 
you get going.  I suspect your problem is something simple.

73, Jim K9YC