Microwave Communication A shipboard equipment which measures the distance between the ship’s bottom and the ocean floor. Fathometer Echosounder SONAR LORAN Fathometer Echosounder SONAR LORAN ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication What is the purpose of the electromagnetic field which surrounds a traveling-wave tube? To keep the electrons from spreading out To slow down the signal on the helix To accelerate the electron To velocity modulate the electron beam To keep the electrons from spreading out To slow down the signal on the helix To accelerate the electron To velocity modulate the electron beam ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a All of these Waveguide match Cavity match Direct coax-helix match All of these Waveguide match Cavity match Direct coax-helix match 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 A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the The frequency will decrease Output power would increase Oscillation will cease Bunching would occur earlier in time The frequency will decrease Output power would increase Oscillation will cease Bunching would occur earlier in time ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Both B and C Tunnel diode Thyratron tube Klystron tube Both B and C Tunnel diode Thyratron tube Klystron tube ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS