Microwave Communication A traveling-wave tube (TWT) amplifies by virtue of The energy liberated form the collector The energy contained the cavity resonators The effect of an external magnetic field The absorption of energy by the signal from an electron stream The energy liberated form the collector The energy contained the cavity resonators The effect of an external magnetic field 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 Duplexer stage Local oscillator Single mixer stage Transmitter oscillator Duplexer stage Local oscillator Single mixer stage Transmitter oscillator ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication To achieve good bearing resolution when using a pulsed-radar set, an important requirement is A narrow, antenna-beam width in the vertical plane A high duty cycle A narrow, antenna-beam width in the horizontal plane A low repetition rate A narrow, antenna-beam width in the vertical plane A high duty cycle A narrow, antenna-beam width in the horizontal plane A low repetition rate ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the Distributed lead inductance Degree of emission from the cathode Electron transit time Inter-electrode capacitance Distributed lead inductance Degree of emission from the cathode Electron transit time Inter-electrode capacitance ANSWER DOWNLOAD EXAMIANS APP
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