Lyle,
Since the K3 hardware design is pretty well fixed in place now, for my
part I would think mixing them would be fine. Any muting of an input
would have to be done outside the K3 if indeed muting is required.
Of course, I believe the ideal would be to have each PTT input line make
its own corresponding AF input active, but that would require the
addition of an analog gate on each audio input and a bit of logic added
to each PTT source. The user could then control which input(s) were
active by controlling the respective PTT inputs - if the user wanted the
audio to be mixed, he would make multiple PTT inputs active - no added
menu functions needed. An arrangement like that could serve well for
stations using multiple mics - but then deciding how the VOX part would
be handled is yet another part of the puzzle, and that may require 'Yet
Another Menu Entry'
73,
Don W3FPR
Lyle Johnson wrote:
Hello Barry!
One issue here is that the K3 only allows a single audio source. Some
other radios (e.g., Orion) allow you to enable both the rear line-in
jack and the front panel mic jack.
We have an active discussion going on with the FT group about this
very topic.
The K3 hardware can allow simultaneous LINE IN and _either_ the front
or the rear mic to be active at the same time. Seems simple.
But the devil is in the details. What if you have audio on both? Do
you mix them? Does one over-ride the other? If so, which has
precedence? How do you do this so it is consistent and intuitive
without adding Yet Another Menu Entry (tm) ??
I'd be happy to receive your thoughts on this topic.
The simple K3 work-around seems to be to "Y" the front panel mic jack
and pad down the line level audio to go in the front in parallel with
the mic.
This opens a path for ground loops and other delights. The LINE I/O
is transformer isolated; the mic is not.
***
One important thing for everyone to keep in mind is that the K3 is
evolving. Due to its Flash Firmware Architecture, and the easy-to-use
K3 Utility software for updating, we are regularly adding features to
the K3, and all K3s in the field can take advantage of them.
We solicit input from our customer community on these features, and we
try very hard to listen.
73,
Lyle KK7P
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