good idea On Fri, Feb 28, 2014 at 6:14 PM, Ashhar Farhan <farhanbox@xxxxxxxxx> wrote: > i played with various schemes including using a 2N7000 to switch the BFO > frequency. However, a very simple scheme has emerged. > > http://www.hfsignals.org/index.php/Sideband_Switching_of_BFO > > - farhan >