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Microwave Communication

Microwave Communication
Which causes multipath or frequency selective fading?

Small reflector
Further reflector
Nearer reflector
Large reflector

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Microwave Communication
In an SHF pulsed radar set, a reflex klystron can be used as a

Local oscillator
Transmitter oscillator
Single mixer stage
Duplexer stage

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Microwave Communication
Klystron oscillators are most often used in the frequency range of

300 to 3000 MHz
30 to 30000 MHz
10 to 10000 MHz
3000 to 30000 MHz

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Microwave Communication
The antenna separations (in meters) required for optimum operation of a space diversity system can be calculated from:where R = effective earth radius (m) and L = path length (m)

S = λR/RL
S = 3λR/L
S = 2λR/L
S = λR/L

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Microwave Communication
Which of the following is used as a high power microwave oscillator?

Reflex-klystron
Magnetron
Klystron
Thyratron

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Microwave Communication
In a pulsed radar set, the function of the duplexer is to

Allow the transmitter and the receiver to operate from a common antenna
Prevent frequency drift in the klystron
All of these
Aid in calibrating the display unit

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MORE MCQ ON Microwave Communication

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