Electronics (Mike Jaroch)
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SPHERICAL WAVEFRONTSWaves of energy that spread out in concentric circles [18]. | ||
SPIN VECTORIn a gyro, a vector representing the angular velocity of the gyro rotor. The spin vector lies along the spin axis of the rotor [15]. | ||
SPLATTERUnwanted sideband frequencies that are generated from overmodulation [12]. | ||
SPLICEA joint formed by the connecting of two or more conductors [4]. | ||
SPORADIC E LAYERIrregular, cloud-like patches of unusually high ionization. Often forms at heights near the normal E layer [10]. | ||
SPREADERInsulator used with transmission lines and antennas to keep the parallel wires separated [10]. | ||
SPROCKET TUNERA mechanical tuning device for magnetron tubes that changes the frequency of the cavities by changing the inductance. Also called a CROWN-OF-THORNS TUNER [11]. | ||
SQUARE MILThe area of a square, the sides of which are each equal to 1 mil. One square mil is equal to 1.2732 circular mils [4]. | ||
SQUELCHA circuit that cuts off the output of a receiver when there is no input [17]. | ||