H4E1T1E1R1O1D2Y4N1I1N1G2
20 points
HETERODYNING is validvalid
HETERODYNE,
HETERODYNE, to change the frequency of (a signal) by imposing on a continuous wave another of slightly different length to produce beats
HETERODYNE,
HETERODYNE, to change the frequency of (a signal) by imposing on a continuous wave another of slightly different length to produce beats