Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by An adjustment in the synchronizer The AFC system Adjusting the flexible wall of the resonant cavity Varying the repeller voltage An adjustment in the synchronizer The AFC system Adjusting the flexible wall of the resonant cavity Varying the repeller voltage ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication At what position is the input signal inserted into a traveling-wave tube? At the collector end of the helix At the control grid of the electron gun At the collector At the cathode end of the helix At the collector end of the helix At the control grid of the electron gun At the collector At the cathode end of the helix ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Theoretically electromagnetic radiation field strength varies in inverse proportion to the square of the distance, but when atmospheric attenuation effects and the absorption of the terrain are taken into account the attenuation can be as high as the inverse ___________ power of the distance. Fifth Fourth Third Sixth Fifth Fourth Third Sixth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Microwave frequencies are normally regarded as those in the range of 1000 to 10,000 GHz 1 to 500 MHz 10 to 1000 GHz 1 to 100 GHz 1000 to 10,000 GHz 1 to 500 MHz 10 to 1000 GHz 1 to 100 GHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Oscillators of a klystron tube are maintained By circulating bunches of electrons within the cavities. By feedback between the accelerating grid and the repeller By plate-to-cathode feedback By bunches of electrons passing the cavity grids By circulating bunches of electrons within the cavities. By feedback between the accelerating grid and the repeller By plate-to-cathode feedback By bunches of electrons passing the cavity grids ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a Direct coax-helix match All of these Waveguide match Cavity match Direct coax-helix match All of these Waveguide match Cavity match ANSWER DOWNLOAD EXAMIANS APP
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