Microwave Communication In a radar-set receiver, the usual mixer stage is A silicon crystal A tunnel diode And FET A Rochelle salts crystal A silicon crystal A tunnel diode And FET A Rochelle salts crystal ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication A PPI cathode-ray tube as used on a radar set Indicates only the range of a target Indicates both the range and azimuth of a target Is used to check the percentage of modulation Is used for receiver alignment Indicates only the range of a target Indicates both the range and azimuth of a target Is used to check the percentage of modulation Is used for receiver alignment ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Which of the following is used as an oscillator device in the SHF band? Thyratron tube Both B and C Tunnel diode Klystron tube Thyratron tube Both B and C Tunnel diode Klystron tube 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 decrease in gain A reduction in horizontal resolution A decrease in range No noticeable effect A decrease in gain A reduction in horizontal resolution A decrease in range No noticeable effect ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication The resonant frequency of a cavity resonator depends upon Its physical dimensions The mode of operation The capacitor which tunes it Its electrical dimensions Its physical dimensions The mode of operation The capacitor which tunes it Its electrical dimensions ANSWER DOWNLOAD EXAMIANS APP
Microwave Communication Rainfall is an important factor for fading of radio waves at frequencies above 100 MHz 10 GHz 1 GHz 100 GHz 100 MHz 10 GHz 1 GHz 100 GHz ANSWER DOWNLOAD EXAMIANS APP
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