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/4 mode 2π mode π mode π/2 mode π/4 mode 2π mode π mode π/2 mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Klystron tube Both B and C Thyratron tube Tunnel diode Klystron tube Both B and C Thyratron tube Tunnel diode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the function of the duplexer is to Aid in calibrating the display unit Prevent frequency drift in the klystron Allow the transmitter and the receiver to operate from a common antenna All of these Aid in calibrating the display unit Prevent frequency drift in the klystron Allow the transmitter and the receiver to operate from a common antenna All of these 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 = λR/RL S = 3λR/L S = 2λR/L S = λR/L S = λR/RL S = 3λR/L S = 2λR/L S = λR/L ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the Inter-electrode capacitance Degree of emission from the cathode Distributed lead inductance Electron transit time Inter-electrode capacitance Degree of emission from the cathode Distributed lead inductance Electron transit time ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a radar-set receiver, the usual mixer stage is And FET A tunnel diode A Rochelle salts crystal A silicon crystal And FET A tunnel diode A Rochelle salts crystal A silicon crystal ANSWER DOWNLOAD EXAMIANS APP
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