Microwave Communication Calculate the effective earth’s radius if the surface refractivity is 301. 6370 km 6370 mi 8493 km 8493 mmi 6370 km 6370 mi 8493 km 8493 mmi ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the reception problems below that is not due to multipath? Delayed spreading Slow fading Random Doppler shift Rayleigh fading Delayed spreading Slow fading Random Doppler shift Rayleigh fading 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. Third Sixth Fifth Fourth Third Sixth Fifth Fourth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Thyratron tube Klystron tube Tunnel diode Both B and C Thyratron tube Klystron tube Tunnel diode Both B and C ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Coupling into and out of a traveling-wave tube can be accompanied by a Direct coax-helix match Waveguide match All of these Cavity match Direct coax-helix match Waveguide match All of these Cavity match ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a pulsed radar set, the function of the duplexer is to Prevent frequency drift in the klystron All of these Allow the transmitter and the receiver to operate from a common antenna Aid in calibrating the display unit Prevent frequency drift in the klystron All of these Allow the transmitter and the receiver to operate from a common antenna Aid in calibrating the display unit ANSWER DOWNLOAD EXAMIANS APP