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Microwave Communication

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

Duplexer stage
Transmitter oscillator
Local oscillator
Single mixer stage

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Microwave Communication
Which of the following is used as an oscillator device in the SHF band?

Thyratron tube
Klystron tube
Both B and C
Tunnel diode

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Microwave Communication
If the duration of the radar transmitted pulse, on a particular range of operation, is increased, the required bandwidth of the receiver’s IF amplifiers

Must be doubled
Must be increased
Must remain as before
May be decreased

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Microwave Communication
The resonant frequency of a cavity resonator depends upon

The mode of operation
Its physical dimensions
The capacitor which tunes it
Its electrical dimensions

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Microwave Communication
What is the purpose of the electromagnetic field which surrounds a traveling-wave tube?

To velocity modulate the electron beam
To keep the electrons from spreading out
To accelerate the electron
To slow down the signal on the helix

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Microwave Communication
What allow microwave to pass in only one direction?

Varactor-triac
Capacitor
RF emitter
Ferrite emitter

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MORE MCQ ON Microwave Communication

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