Lee,
Why use an interface box at all? The K3 has isolation transformers 'in
the K3 box', and all you need is an inexpensive external soundcard.
That is true no matter what the software soundcard digital mode may be.
For rig control with the P3 in the station mix, the RS-232 cable to the
PC should connect to the P3.
Use DATA A mode except for RTTY where you would use AFSK A.
You can use the internal soundcard in your computer, but it may also
transmit system sounds (you can hear that on the air).
The soundcard setup has nothing to do with which soundcard digital mode
you may be using - if the software tries to set the audio (power) level,
you may have to manipulate that between applications. In general it
should be set to about 50%.
Set the audio level to produce 4 bars solid on the K3/K3S/KX3/KX2 with
the 5th bar flickering. With the software/soundcard sliders to 50%,
adjust the LINE IN on the K3 to produce the required level on the ALC meter.
73,
Don W3FPR
On 8/20/2017 10:07 PM, Leroy Buller wrote:
> I am running a K3 with an RS232 connection to my Win 10 computer. Basic
> early model K3. I also have a p3. I want to move from a Signalink
> interface to a West Mountain Advantage interface to get some more
> flexibilty. I use N1MM to contest on CW and Rtty...MMTTY. I also want to
> look at WSPR X modes.
>
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