Microwave Communication Which of the following operating frequencies is used for the modern loran navigational system? Loran C: 100 kHz Loran D: 10.2 kHz Loran A: 1950 kHz Loran B: 900 kHz Loran C: 100 kHz Loran D: 10.2 kHz Loran A: 1950 kHz Loran B: 900 kHz ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A thin layer of dirt and grime coverts the reflecting surface of the parabolic dish of a radar set. The particular effect on the performance of the radar will be A reduction in horizontal resolution A decrease in gain A decrease in range No noticeable effect A reduction in horizontal resolution A decrease in gain A decrease in range No noticeable effect ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The coarse frequency adjustment of a reflex klystron is accomplished by Varying the repeller voltage The AFC system An adjustment in the synchronizer Adjusting the flexible wall of the resonant cavity Varying the repeller voltage The AFC system An adjustment in the synchronizer Adjusting the flexible wall of the resonant cavity 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 Third Sixth Fourth Fifth Third Sixth Fourth 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
Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a All of these Direct coax-helix match Waveguide match Cavity match All of these Direct coax-helix match Waveguide match Cavity match ANSWER DOWNLOAD EXAMIANS APP
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