(Sorry if this is a repost) I have finished constructing the Farhan Minima Transceiver BFO Oscillator Module for my Transceiver Experiments. See: http://wa0uwh.blogspot.com/search/label/Minima And now I have several questions: 1. What should the actual BFO Frequencies be for generating USB and LSB with a 20MHz IF? 2. Or at least, What is the expected difference between the two Frequencies? 3, Does this all depend on the width of the Crystal Filter? 4. In normal Transceiver operations, does the VFO Frequency also have to change (a little) when selecting the opposite Sideband? Any help would be appreciated, Thanks. Regards, 73 - Eldon - WA0UWH