I'll add that, with Win10 volume mixer sliders set at 50%, WSJT-X slider set to 50%, MIC GAIN is at 3-4 to get 4 bars with 5th flashing. Running Win10 volume mixer slider to 100% does not allow 4-5 bars on the KX2 TX even with MIC GAIN on 1 and WSJT-X slider near zero. BRET/N4SRN -- Sent from: http://elecraft.365791.n2.nabble.com/