[Elecraft] [K3S] Audio from computer speakers with RSP1A connected to P3 IF Out

[Jim N7US]

I recently bought a SDRplay RSP1A SDR and have it connected to the IF Out on
my P3, and I'm using it with Win4K3Suite for a spectrum display.

 

When the radio is tuned to a quiet frequency on CW, I hear weak CW through
my computer speakers, but it stops if I unplug the RSP1A from the P3's IF
Out jack.   (I assume the same would happen on other modes.)

 

The volume is faint, and I can adjust it speakers' volume control or the
computer's speaker volume (in Windows) on my keyboard.  I can tune the
signal in by changing the VFO frequency on the K3S, but I hear the signal a
couple kHz above zero beat, so it's very broad.

 

Does this make any sense?  Thanks for any insight.

 

Jim N7US