Microwave Communication When used in conjunction with a radar set, the purpose of an echo box is to provide an artificial target. To the tone of the pulse repetition Which may be used to tune the radar receiver Tune the magnetron to the correct frequency Which may be used to tune the radar synchronizer To the tone of the pulse repetition Which may be used to tune the radar receiver Tune the magnetron to the correct frequency Which may be used to tune the radar synchronizer ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication __________ is the progressive decrease of signal strength with increasing distance. Propagation Modulation Attenuation Radiation Propagation Modulation Attenuation Radiation ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication In a radar-set receiver, the usual mixer stage is And FET A silicon crystal A tunnel diode A Rochelle salts crystal And FET A silicon crystal A tunnel diode A Rochelle salts crystal ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A traveling-wave tube (TWT) amplifies by virtue of The effect of an external magnetic field The absorption of energy by the signal from an electron stream The energy contained the cavity resonators The energy liberated form the collector The effect of an external magnetic field The absorption of energy by the signal from an electron stream The energy contained the cavity resonators The energy liberated form the collector 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. Sixth Fifth Third Fourth Sixth Fifth Third Fourth ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following operating frequencies is used for the modern loran navigational system? Loran A: 1950 kHz Loran B: 900 kHz Loran D: 10.2 kHz Loran C: 100 kHz Loran A: 1950 kHz Loran B: 900 kHz Loran D: 10.2 kHz Loran C: 100 kHz ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS