[Elecraft] K3: Help with K3 and Softrock IF - Poor audio using PSDR/IF as panadapter

[Lawrence Libsch]

           When running PowerSDR/IF as a panadapter with my Softrock IF, I am unable to get the audio out of my soundcard to sound right. It sounds as though I am tuned either off frequency on the low side or off frequency on the high side. The complete setup is: K3 without mod for IF for LP Pan, Z10000 buffer amp set up for K3, EM 0202 USB, Lenovo T61 laptop running WIN XP Pro SP2, LP Bridge v 0.9.86, Power SDR/IF v 0.92.

 

            I see a good trace on the PSDR panadapter. When I tune to a 20  m sideband frequency where there is a signal, and listen to both the K3 speaker audio and the EMU audio from headphones plugged into the headphone speaker jack, the signals I hear from the EMU are clearly the same audio as from the K3 on that frequency. But they aren't clear. I can't copy them. The EMU sounds like it is mis-tuned. I have carefully adjusted the Global frequency offset so that the frequency peak of WWV at 15 Mhz falls precisely at 15 Mhz on the zoomed panadapter trace. I have tried changing the global frequency offset both up and down. This does not correct the problem. 

 

            Help please.

 

                                                                                    Larry,   K4KGG