Microwave Communication Which of the following is used as a high power microwave oscillator? Magnetron Reflex-klystron Thyratron Klystron Magnetron Reflex-klystron Thyratron Klystron ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon The capacitor which tunes it Its physical dimensions The mode of operation Its electrical dimensions The capacitor which tunes it Its physical dimensions The mode of operation Its electrical dimensions ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A shipboard equipment which measures the distance between the ship’s bottom and the ocean floor. SONAR Fathometer LORAN Echosounder SONAR Fathometer LORAN Echosounder 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 Electron transit time Distributed lead inductance Degree of emission from the cathode Inter-electrode capacitance Electron transit time Distributed lead inductance Degree of emission from the cathode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication To achieve good bearing resolution when using a pulsed-radar set, an important requirement is A low repetition rate A high duty cycle A narrow, antenna-beam width in the horizontal plane A narrow, antenna-beam width in the vertical plane A low repetition rate A high duty cycle A narrow, antenna-beam width in the horizontal plane A narrow, antenna-beam width in the vertical plane 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 = 3λR/L S = λR/RL S = λR/L S = 2λR/L S = 3λR/L S = λR/RL S = λR/L ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS