Communication Systems Which of the following is an indirect way of generating FM? Armstrong modulator Reactance FET modulator Varactor diode modulator Reactance bipolar transistor Armstrong modulator Reactance FET modulator Varactor diode modulator Reactance bipolar transistor ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Assertion (A): In FM the frequency of the carrier is varied by the modulating voltageReason (R): FM and PM are two forms of angle modulation. Both A and R are correct and R is correct explanation of A A is wrong but R is correct Both A and R are correct but R is not correct explanation of A A is correct but R is wrong Both A and R are correct and R is correct explanation of A A is wrong but R is correct Both A and R are correct but R is not correct explanation of A A is correct but R is wrong ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to 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 Limit noise picked by a receiver ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization Is useful in discrimination between reception of adjacent beams None of these Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams None of these Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 1280 kHz 70 kHz 10 kHz 35 kHz 1280 kHz 70 kHz 10 kHz 35 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In TV systems, equalising pulses are sent during Horizontal retrace Serrations Horizontal blanking Vertical blanking Horizontal retrace Serrations Horizontal blanking Vertical blanking ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS