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 π/4 mode π/2 mode 2π mode π mode π/4 mode π/2 mode 2π mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Oscillators of a klystron tube are maintained By feedback between the accelerating grid and the repeller By circulating bunches of electrons within the cavities. By bunches of electrons passing the cavity grids By plate-to-cathode feedback By feedback between the accelerating grid and the repeller By circulating bunches of electrons within the cavities. By bunches of electrons passing the cavity grids By plate-to-cathode feedback 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 increased Must remain as before Must be doubled May be decreased Must be increased Must remain as before Must be doubled May be decreased ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In microwave transmission using digital radio, what causes most intersymbol interference? Delayed spreading Slow fading Rayleigh fading Random Doppler shift Delayed spreading Slow fading Rayleigh fading Random Doppler shift ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication __________ is the progressive decrease of signal strength with increasing distance. Modulation Radiation Attenuation Propagation Modulation Radiation Attenuation Propagation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In an SHF pulsed radar set, a reflex klystron can be used as a Transmitter oscillator Duplexer stage Single mixer stage Local oscillator Transmitter oscillator Duplexer stage Single mixer stage Local oscillator ANSWER DOWNLOAD EXAMIANS APP
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