Microwave Communication A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B) May be tested during the first five minutes of any hour Must be capable of floating or being secured to a survival All of these Must have its battery replaced after emergency use May be tested during the first five minutes of any hour Must be capable of floating or being secured to a survival All of these Must have its battery replaced after emergency use ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the π/4 mode 2π mode π mode π/2 mode π/4 mode 2π mode π mode π/2 mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 100 GHz 1 GHz 100 MHz 10 GHz 100 GHz 1 GHz 100 MHz 10 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon The capacitor which tunes it Its electrical dimensions Its physical dimensions The mode of operation The capacitor which tunes it Its electrical dimensions Its physical dimensions The mode of operation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which causes multipath or frequency selective fading? Nearer reflector Large reflector Small reflector Further reflector Nearer reflector Large reflector Small reflector Further reflector ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Oscillators of a klystron tube are maintained By feedback between the accelerating grid and the repeller By bunches of electrons passing the cavity grids By plate-to-cathode feedback By circulating bunches of electrons within the cavities. By feedback between the accelerating grid and the repeller By bunches of electrons passing the cavity grids By plate-to-cathode feedback By circulating bunches of electrons within the cavities. ANSWER DOWNLOAD EXAMIANS APP
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