H4E1T1E1R1O1D2Y4N1E1S1
18 points
HETERODYNES 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