Microwave Communication In a radar-set receiver, the usual mixer stage is A Rochelle salts crystal A tunnel diode And FET A silicon crystal A Rochelle salts crystal A tunnel diode And FET A silicon crystal ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the function of the duplexer is to Allow the transmitter and the receiver to operate from a common antenna Aid in calibrating the display unit Prevent frequency drift in the klystron All of these Allow the transmitter and the receiver to operate from a common antenna Aid in calibrating the display unit Prevent frequency drift in the klystron All of these ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The frequency of the oscillation generated by a magnetron, is mainly determined by The number of the cavity resonators The flux density of the external magnet The dimension of each cavity resonator The ratio of the dc cathode voltage to the magnetic flux density The number of the cavity resonators The flux density of the external magnet The dimension of each cavity resonator The ratio of the dc cathode voltage to the magnetic flux density ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A traveling-wave tube (TWT) amplifies by virtue of The energy contained the cavity resonators The energy liberated form the collector The absorption of energy by the signal from an electron stream The effect of an external magnetic field The energy contained the cavity resonators The energy liberated form the collector The absorption of energy by the signal from an electron stream The effect of an external magnetic field ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers May be decreased Must be increased Must be doubled Must remain as before May be decreased Must be increased Must be doubled Must remain as before ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the π mode 2π mode π/2 mode π/4 mode π mode 2π mode π/2 mode π/4 mode ANSWER DOWNLOAD EXAMIANS APP
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