Communication Systems A modem is classified as low speed if data rate handled is Upto 250 bps Upto 400 bps Upto 600 bps Upto 100 bps Upto 250 bps Upto 400 bps Upto 600 bps Upto 100 bps ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A buffer amplifier is A cathode follower stage None of these A high gain D.C. amplifier A double-tuned amplifier A cathode follower stage None of these A high gain D.C. amplifier A double-tuned amplifier ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to Limit noise picked by a receiver Produce 100% modulation Produce balanced modulation of a carrier wave Suppress carrier signal in order to create a single-sideband or double sideband Limit noise picked by a receiver Produce 100% modulation Produce balanced modulation of a carrier wave Suppress carrier signal in order to create a single-sideband or double sideband ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. True False True False ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Harmonic devices Class C amplifiers Non-linear devices Linear devices Harmonic devices Class C amplifiers Non-linear devices Linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is The lower modulating power requirement Improved efficiency High power output per transistor Better linearity The lower modulating power requirement Improved efficiency High power output per transistor Better linearity ANSWER DOWNLOAD EXAMIANS APP
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