Just finished the basic kit and SN 3194 is on the air, working well. One thing I noticed setting up the filters using Spectrogram was that LSB produced a bit more audio output than USB, Is this typical? I can switch from CW to CW-R and the tones are the same but the background noise is a bit lower in pitch on CW-R. Is this typical? Any advice greatly appreciated. 73 de K8HJ John