[Elecraft] K3 - Splitting main/sub audio to 2 headphones

[Paul Young]

We did this from PJ4A in the CQ WW CW contest using a passive splitter 
pretty much as you describe.  There were several headsets used before 
and during the contest.  It worked just fine.

The bigger problem is having two operators needing to access the front 
panel of a small radio and, in our case, having two logging programs 
needing frequency information from one radio.  The latter was solved 
with a software hack - the former, well, you don't have to touch the 
radio much when you are running stations from PJ4.

     Paul, K1XM

On 5/31/2014 5:20 AM, Stewart Rolfe wrote:
> I want to have a second op listening to the sub rx on a separate pair 
> of phones (for 6m trophy, so same band). I've strung together 2 stereo 
> sockets with one fed from the right and the other from the left side of 
> the front panel phone output and this seems to works well. With the 
> channels linked I get Main in both ears in one headphone set and Sub in 
> both ears in the other, and when the sub rx is off there is Main in 
> both.
> 
> I'll be using a Yamaha CM-500 and a gaming headset so I'm wondering if 
> I should be loading the audio with 2 headphones without any buffering 
> etc. A cheap mixer with separate amps would be good and may give better 
> volume control although the gamers have an inline volume control on the 
> lead. A quick search however hasn't found a mixer that separates the 
> input channels.....