[Elecraft] line in/line out question

[Tim Tucker]

Is there a way to configure the rear mic and rear speakers to work as an
additional line in/out while the front mic is also active (similar to the
regular line in/out).

Here's the situation:  I have the line in/out rigged up to the PC for
soundcard modes.  However, I would also like to hook up a TNC for
Amtor/Pactor ARQ modes.  It wasn't very long ago that it was quite common on
our MARS nets to pass traffic in both Soundcard (MT63) modes and then again
in ARQ (Amtor or Pactor) for stations that needed it.  Under this scenario,
the operator must be able to address the net by voice and quickly change to
the other modes as needed or requested, and then back to voice; there is no
time for fooling around with menu options to switch mic inputs.  I can see
this also being necessary for any operator that needs to operate MARS
digital nets using both a Pactor III modem and Winmor (soundcard tnc) modes.


On my Icom 746 Pro, I have more than one AF in/out on the rear panel, so
having both a TNC and soundcard hooked up and using them both within seconds
of each other is trivial.  Is there a way to do this with the K3?

Thanks for any suggestions,

Tim
AE6LX