Microwave Communication A traveling-wave tube (TWT) amplifies by virtue of The effect of an external magnetic field The energy contained the cavity resonators The energy liberated form the collector The absorption of energy by the signal from an electron stream The effect of an external magnetic field The energy contained the cavity resonators The energy liberated form the collector The absorption of energy by the signal from an electron stream ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 6370 km 8493 mmi 8493 km 6370 mi 6370 km 8493 mmi 8493 km 6370 mi ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In an SHF pulsed radar set, a reflex klystron can be used as a Local oscillator Single mixer stage Transmitter oscillator Duplexer stage Local oscillator Single mixer stage Transmitter oscillator Duplexer stage 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 narrow, antenna-beam width in the horizontal plane A high duty cycle A narrow, antenna-beam width in the vertical plane A low repetition rate A narrow, antenna-beam width in the horizontal plane A high duty cycle A narrow, antenna-beam width in the vertical plane 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 Distributed lead inductance Electron transit time Degree of emission from the cathode Inter-electrode capacitance Distributed lead inductance Electron transit time Degree of emission from the cathode ANSWER DOWNLOAD EXAMIANS APP
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