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Microwave Communication

Microwave Communication
If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the

π/2 mode
2π mode
π/4 mode
π mode

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Microwave Communication
Which of the following operating frequencies is used for the modern loran navigational system?

Loran C: 100 kHz
Loran D: 10.2 kHz
Loran A: 1950 kHz
Loran B: 900 kHz

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Microwave Communication
A reflex klystron is oscillating at the frequency of its resonant cavity. If the reflector voltage is made slightly less negative, the

Oscillation will cease
Bunching would occur earlier in time
Output power would increase
The frequency will decrease

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Microwave Communication
In a radar-set receiver, the usual mixer stage is

A tunnel diode
A Rochelle salts crystal
And FET
A silicon crystal

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Microwave Communication
The main frequency determining element of a klystron is

Its mode of operation
The accelerating voltage
Its resonant cavity
The repeller voltage

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

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

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MORE MCQ ON Microwave Communication

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