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Microwave Communication

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

Transmitter oscillator
Single mixer stage
Duplexer stage
Local oscillator

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Microwave Communication
The aquadag coating on the inside of PPI tube is used

To shield the electron beam from unidirectional magnetic
To focus the beam of primary electrons
All of these
As a second anode and to prevent the build-up of secondary field

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

Delayed spreading
Random Doppler shift
Rayleigh fading
Slow fading

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Microwave Communication
Which causes multipath or frequency selective fading?

Further reflector
Small reflector
Nearer reflector
Large reflector

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Microwave Communication
A magnetron is operated at a duty cycle of 0.001. It has a peak power output of 100 kilo-watts. Its average power is

1,000 watts
1,000,000 watts
100 watts
10,000 watts

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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
Isolator
Magnetron
Simplex

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MORE MCQ ON Microwave Communication

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