[Elecraft] K3: Contesters using N1MM voice keyer versus K3DVK

[Jim Brown]

On 9/4/2011 5:36 PM, Torsten Clay wrote:
> I use a simple (1 transistor) homebrew mic preamp
> between the microphone (Heil dynamic headset) and the computer audio in.
> Audio out from the computer goes straight to the back of the K3.

I can't think of a reason why that should be required unless the laptop 
doesn't have a preamp on the mic input.

As you have noted, it's possible to use the computer sound card with 
N1MM (and with some other logging software) to route a mic plugged into 
the sound card to two radios.  I've done that, and it works.  However, a 
much better solution is a hardware SO2R box, like the one put together 
by a team at the Yankee Clipper Contest Club in New England.  It's a 
kit, and they have done at least three group purchases of the parts to 
build them. I got in on the second group, and am VERY pleased with it.  
Dennis, W1UE, is the guy to talk to. As I recall, I paid about $200 and 
built it in something like 4-6 hours.

73, Jim K9YC