Microwave Communication Which of the following is used as an oscillator device in the SHF band? Tunnel diode Klystron tube Both B and C Thyratron tube Tunnel diode Klystron tube Both B and C Thyratron tube 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 velocity modulate the electron beam To slow down the signal on the helix To accelerate the electron To keep the electrons from spreading out To velocity modulate the electron beam To slow down the signal on the helix To accelerate the electron ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A shipboard equipment which measures the distance between the ship’s bottom and the ocean floor. Fathometer SONAR LORAN Echosounder Fathometer SONAR LORAN Echosounder ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a Cavity match All of these Direct coax-helix match Waveguide match Cavity match All of these Direct coax-helix match Waveguide match ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication __________ is the progressive decrease of signal strength with increasing distance. Propagation Radiation Attenuation Modulation Propagation Radiation Attenuation Modulation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B) Must be capable of floating or being secured to a survival All of these May be tested during the first five minutes of any hour Must have its battery replaced after emergency use Must be capable of floating or being secured to a survival All of these May be tested during the first five minutes of any hour Must have its battery replaced after emergency use ANSWER DOWNLOAD EXAMIANS APP
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