Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is The lower modulating power requirement High power output per transistor Better linearity Improved efficiency The lower modulating power requirement High power output per transistor Better linearity Improved efficiency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 1 15 16 8 1 15 16 8 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A telephone channel requires a bandwidth of about 10 kHz 3 kHz 50 kHz 1 kHz 10 kHz 3 kHz 50 kHz 1 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz. 102.3 113 80.9 70.2 102.3 113 80.9 70.2 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The characteristic impedance of a twin wire feeder used for TV signals is about 100 ohm 1000 ohm 500 ohm 300 ohm 100 ohm 1000 ohm 500 ohm 300 ohm ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A modem is classified as low speed if data rate handled is Upto 400 bps Upto 250 bps Upto 100 bps Upto 600 bps Upto 400 bps Upto 250 bps Upto 100 bps Upto 600 bps ANSWER DOWNLOAD EXAMIANS APP
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