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Microwave Communication

Microwave Communication
Which of the reception problems below that is not due to multipath?

Delayed spreading
Slow fading
Random Doppler shift
Rayleigh fading

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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
No noticeable effect
A decrease in range

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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

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Microwave Communication
A PPI cathode-ray tube as used on a radar set

Indicates only the range of a target
Is used to check the percentage of modulation
Indicates both the range and azimuth of a target
Is used for receiver alignment

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Microwave Communication
To achieve good bearing resolution when using a pulsed-radar set, an important requirement is

A high duty cycle
A narrow, antenna-beam width in the horizontal plane
A narrow, antenna-beam width in the vertical plane
A low repetition rate

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Microwave Communication
What ferrite device can be used instead of duplexer of isolate microwave transmitter and receiver when both are connected to the same antenna?

Circulator
Simplex
Magnetron
Isolator

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MORE MCQ ON Microwave Communication

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