Microwave Communication A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the Bunching would occur earlier in time 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 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/2 mode 2π mode π mode π/4 mode π/2 mode 2π mode π mode π/4 mode ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication As the electron beam moves through a klystron’s intercavity drift space Density modulation at the input cavity creates velocity modulation at the output cavity Velocity modulation at the input cavity creates density modulation at the output cavity Frequency modulation at the input cavity creates velocity modulation at the output cavity Phase modulation at the input cavity creates velocity modulation at the output cavity. Density modulation at the input cavity creates velocity modulation at the output cavity Velocity modulation at the input cavity creates density modulation at the output cavity Frequency modulation at the input cavity creates velocity modulation at the output cavity Phase modulation at the input cavity creates velocity modulation at the output cavity. ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Oscillators of a klystron tube are maintained By feedback between the accelerating grid and the repeller By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By bunches of electrons passing the cavity grids By feedback between the accelerating grid and the repeller By circulating bunches of electrons within the cavities. By plate-to-cathode feedback By bunches of electrons passing the cavity grids ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 8493 km 8493 mmi 6370 km 6370 mi 8493 km 8493 mmi 6370 km 6370 mi 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
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