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/2 mode π/4 mode 2π mode π mode π/2 mode π/4 mode 2π mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication When used in conjunction with a radar set, the purpose of an echo box is to provide an artificial target. Which may be used to tune the radar synchronizer Which may be used to tune the radar receiver To the tone of the pulse repetition Tune the magnetron to the correct frequency Which may be used to tune the radar synchronizer Which may be used to tune the radar receiver To the tone of the pulse repetition Tune the magnetron to the correct frequency ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have The shortest possible time A long time constant Low-pass filters The restricted high-frequency response The shortest possible time A long time constant Low-pass filters The restricted high-frequency response ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What do you call an attenuation that occurs over many different wavelengths of the carrier? Rician fading Slow fading Wavelength fading Rayleigh fading Rician fading Slow fading Wavelength fading Rayleigh fading ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be A decrease in range No noticeable effect A reduction in horizontal resolution A decrease in gain A decrease in range No noticeable effect A reduction in horizontal resolution A decrease in gain ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Oscillators of a klystron tube are maintained By bunches of electrons passing the cavity grids By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By feedback between the accelerating grid and the repeller By bunches of electrons passing the cavity grids By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By feedback between the accelerating grid and the repeller ANSWER DOWNLOAD EXAMIANS APP
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