Microwave Communication Microwave frequencies are normally regarded as those in the range of 1 to 500 MHz 1000 to 10,000 GHz 1 to 100 GHz 10 to 1000 GHz 1 to 500 MHz 1000 to 10,000 GHz 1 to 100 GHz 10 to 1000 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The maximum usable range of the usual radar set (on any particular range setting) is determined by The interval between transmitted pulses The duty cycle The bandwidth of the receiver IF stages The width of the transmitted pulses The interval between transmitted pulses The duty cycle The bandwidth of the receiver IF stages The width of the transmitted pulses ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication As the electron beam moves through a klystron’s intercavity drift space Phase modulation at the input cavity creates velocity modulation at the output cavity. Density modulation at the input cavity creates velocity modulation at the output cavity Frequency modulation at the input cavity creates velocity modulation at the output cavity Velocity modulation at the input cavity creates density modulation at the output cavity Phase modulation at the input cavity creates velocity modulation at the output cavity. Density modulation at the input cavity creates velocity modulation at the output cavity Frequency modulation at the input cavity creates velocity modulation at the output cavity Velocity modulation at the input cavity creates density modulation at the output cavity ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following permits a microwave signal to travel in one direction with virtually no loss, but severely attenuates any signal attempting to travel in the reverse direction? Tunnel diode Wave trap Isolator Circulator Tunnel diode Wave trap Isolator Circulator ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The frequency of the oscillation generated by a magnetron, is mainly determined by The ratio of the dc cathode voltage to the magnetic flux density The dimension of each cavity resonator The number of the cavity resonators The flux density of the external magnet The ratio of the dc cathode voltage to the magnetic flux density The dimension of each cavity resonator The number of the cavity resonators The flux density of the external magnet 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 Must be doubled Must remain as before Must be increased May be decreased Must be doubled Must remain as before Must be increased May be decreased ANSWER DOWNLOAD EXAMIANS APP
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