[Elecraft] Using external sound card for digital modes

[RB3]

Good morning!

I've only had my KX3 for a month, but I've enjoyed it so far. Recently, I
have been trying to operate digital modes (RTTY and PSK31) using my SB
Audigy 2 NX external sound card and several different programs (fldigi,
KComm, HRD, and a few others). I am using the KX3USB for control and the
KX3-PCKT cables (Red, Green, and I/Q) for input/output/analyzer. Every time
I connect the MIC input to the sound card output, the rig keys down until I
unplug the red cable from the input.

I've tried using different selections in the programs for PTT (serial, VOX,
software), but nothing seems to work. I am aware of other options out
there, such as the RigBlaster and SignaLink USB, but I was hoping to be
able to use the equipment I already have.

Any suggestions would be most welcome.

73,
Sonny
KC3DNN

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