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Definition of "Varactor FM Modulator" |
An FM modulator that uses a voltage-variable capacitor (varactor). / Varactor FM Modulator which is widely used in transistorized circuitryuses a voltage-variable capacitor. The varactor is simply a diode, or pn junction, that isdesigned to have a certain amount of capacitance between junctions. / A & B signaling is a process of transferring signaling information on a digital communication line that involves the stealing of bits from the digital transmission line called the A & B bits. This is a type of in-band signaling as it steals some of the channel bandwidth for use as signaling messages. When it is used in T1 transmission line, 1 bit of user data from each of the 24 sub-channels in every sixth frame is stolen and replaced with signaling control information. |
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