Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 100 GHz 1 GHz 10 GHz 100 MHz 100 GHz 1 GHz 10 GHz 100 MHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The frequency of the oscillation generated by a magnetron, is mainly determined by The dimension of each cavity resonator The flux density of the external magnet The ratio of the dc cathode voltage to the magnetic flux density The number of the cavity resonators The dimension of each cavity resonator The flux density of the external magnet The ratio of the dc cathode voltage to the magnetic flux density The number of the cavity resonators 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. Velocity modulation at the input cavity creates density 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 Phase 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 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 ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What is the purpose of the electromagnetic field which surrounds a traveling-wave tube? To slow down the signal on the helix To keep the electrons from spreading out To accelerate the electron To velocity modulate the electron beam To slow down the signal on the helix To keep the electrons from spreading out To accelerate the electron To velocity modulate the electron beam ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a radar-set receiver, the usual mixer stage is A Rochelle salts crystal A silicon crystal And FET A tunnel diode A Rochelle salts crystal A silicon crystal And FET A tunnel diode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The maximum usable range of the usual radar set (on any particular range setting) is determined by 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 The interval between transmitted pulses The duty cycle ANSWER DOWNLOAD EXAMIANS APP
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