Electronics (Mike Jaroch)

AMPLITRON—See CROSS-FIELD AMPLIFIER [18].

AMPLITUDE—The size of a signal as measured from a reference line to a maximum value above or below the line. Generally used to describe voltage, current, or power [8] [12].

AMPLITUDE DISTORTION—Distortion that is present in an amplifier when the amplitude of the output signal fails to follow exactly any increase or decrease in the amplitude of the input signal [6] [7].

AMPLITUDE MODULATION—Any method of varying the amplitude of an electromagnetic carrier frequency in accordance with the intelligence to be transmitted [12].

AMPLITUDE STABILITY—Amplitude stability refers to the ability of the oscillator to maintain a constant amplitude in the output waveform [9].

AND CIRCUIT—See AND GATE [13].

AND GATE—(1) An electronic gate whose output is energized only when every input is in its prescribed state. An AND gate performs the function of the logical "AND"; also called an AND circuit. (2) A binary circuit, with two or more inputs and a single output, in which the output is a logic 1 only when all inputs are a logic 1 and the output is a logic 0 when any one of the inputs is a logic 0 [13].

Modulation in which the angle of a sine-wave carrier is varied by a modulating
wave [12].

The angle between the incident wave and the normal [10].

The angular difference between the equatorial plane of the earth and the
plane of orbit of the satellite [17].