Fm Pm Modulation

May 5th, 2015
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The need for modulation arises because the range of frequencies contained in a baseband signal is not, in general, the same as the range of frequencies which can be transmitted by the communications channel. * AM – Amplitude Modulation

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Saturable ReactorSource : http://www.youtube.com/watch?v=lB3HBoKPbOQSaturable ReactorSaturable reactor or magnetic amplifier is a circuit that used to control very large load of AC with very small input DC. The saturable reactor consists of three essential elements : Direct current source, magnetic core with windings, and alternating current source. How it work? The AC load circuit run on to magnetic core and the DC control circuit is also went on to the same core. Ac current flows through winding and Since this current is alternating, the flux set up in the magnetic circuit loop is con

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