amplitude modulation

from WordNet (r) 3.0 (2006)

amplitude modulation
    n 1: modulation of the amplitude of the (radio) carrier wave
         [syn: {amplitude modulation}, {AM}]

from The Free On-line Dictionary of Computing (8 July 2008)

Amplitude Modulation

   <communications> (AM) A method of encoding {data} by varying
   the {amplitude} of a constant {frequency} {carrier}.

   Contrast {Frequency Modulation}.

   (2001-04-30)