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INTERFERENCE AND NOISE STRUCTURE
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actual aerial amplifier amplitude modulation angle anode applied assumed audio frequency band band-width broadcast carrier frequency chapter characteristic circuit component consideration considered constant continuous wave curve cycles desired determined deviation ratio diagram difference dipole direct directly discriminator distance distortion effect employed equal equation example expressed factor field strength figure follows frequency deviation frequency modulation gain given greater grid harmonic horizontal illustrated impedance improvement impulsive increased indicated input interference interfering kc/s layer length limiter lower maximum mc/s mean measurements modulating signal necessary noise normal noted obtained occur ohms operating oscillator output pass path peak phase modulation polarisation possible practical produced radiation Radio range receiver reduced reflected resistance response result selectivity shift shown shows sidebands signal stage station transmission transmitter tuned unit valve variations varied various vector vertical voltage WATTS wave zero