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 One of the advantages of base modulation over collector modulation of a transistor class C amplifier is High power output per transistor Better linearity The lower modulating power requirement Improved efficiency High power output per transistor Better linearity The lower modulating power requirement Improved efficiency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Pulse Code Modulation system Large bandwidth is required Suffers from the disadvantage of its incompatibly with TDM Quantising noise can be overcome by companding Quantising noise can be reduced by decreasing the number of standard levels Large bandwidth is required Suffers from the disadvantage of its incompatibly with TDM Quantising noise can be overcome by companding Quantising noise can be reduced by decreasing the number of standard levels ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For AM receivers the standard IF frequency is 1.07 MHz 10.7 MHz 455 kHz 106 kHz 1.07 MHz 10.7 MHz 455 kHz 106 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant Amplitude of distant sidebands decreases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant Amplitude of distant sidebands decreases ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as 4E 6E 2E 3E 4E 6E 2E 3E ANSWER DOWNLOAD EXAMIANS APP
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