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| AM |
a system of varying a radio signal's amplitude so as to impose the signal on a carrier wave; amplitude modulation. [1/2 definitions] |
| amplify |
in electrical terminology, to increase the current, amplitude, voltage, or power of. [1/4 definitions] |
| modulate |
to vary the frequency, amplitude, phase, or the like of (an electromagnetic wave). [2/6 definitions] |
| modulation |
variation of the frequency, amplitude, phase, or the like of an electromagnetic wave. [1/3 definitions] |
| phase modulation |
in radio transmission, variation of the phase of a carrier wave in accordance with the amplitude of a modulating signal such as speech. |
| wave |
the form that energy takes when traveling, characterized by periodic oscillation. Energy in the form of heat, light, or sound, for example, travels in the form of waves. Characteristics of such waves include period, frequency, amplitude, and wavelength. [1/14 definitions] |
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