Microwave Communication The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the Electron transit time Degree of emission from the cathode Distributed lead inductance Inter-electrode capacitance Electron transit time Degree of emission from the cathode Distributed lead inductance Inter-electrode capacitance 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 restricted high-frequency response Low-pass filters The shortest possible time A long time constant The restricted high-frequency response Low-pass filters The shortest possible time A long time constant ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A high-power microwave pulse of the order of megawatts can be generated by a Traveling-wave tube Magnetron Gunn diode Reflex klystron Traveling-wave tube Magnetron Gunn diode Reflex klystron 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
Microwave Communication The main frequency determining element of a klystron is The accelerating voltage The repeller voltage Its resonant cavity Its mode of operation The accelerating voltage The repeller voltage Its resonant cavity Its mode of operation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The antenna separations (in meters) required for optimum operation of a space diversity system can be calculated from:where R = effective earth radius (m) and L = path length (m) S = 2λR/L S = λR/L S = 3λR/L S = λR/RL S = 2λR/L S = λR/L S = 3λR/L S = λR/RL ANSWER DOWNLOAD EXAMIANS APP
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