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Microwave Communication

Microwave Communication
Rainfall is an important factor for fading of radio waves at frequencies above

100 GHz
1 GHz
10 GHz
100 MHz

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Microwave Communication
The frequency of the oscillation generated by a magnetron, is mainly determined by

The flux density of the external magnet
The number of the cavity resonators
The ratio of the dc cathode voltage to the magnetic flux density
The dimension of each cavity resonator

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Microwave Communication
Microwave frequencies are normally regarded as those in the range of

10 to 1000 GHz
1 to 500 MHz
1000 to 10,000 GHz
1 to 100 GHz

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

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

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Microwave Communication
__________ is the progressive decrease of signal strength with increasing distance.

Radiation
Modulation
Propagation
Attenuation

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Microwave Communication
The highest frequency which a conventional vacuum tube oscillator can generate is not limited by the

Distributed lead inductance
Electron transit time
Degree of emission from the cathode
Inter-electrode capacitance

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MORE MCQ ON Microwave Communication

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