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Microwave Communication

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

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

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

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

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Microwave Communication
A traveling-wave tube (TWT) amplifies by virtue of

The energy liberated form the collector
The effect of an external magnetic field
The energy contained the cavity resonators
The absorption of energy by the signal from an electron stream

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Microwave Communication
Klystron oscillators are most often used in the frequency range of

10 to 10000 MHz
30 to 30000 MHz
3000 to 30000 MHz
300 to 3000 MHz

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Microwave Communication
At what position is the input signal inserted into a traveling-wave tube?

At the collector
At the control grid of the electron gun
At the cathode end of the helix
At the collector end of the helix

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Microwave Communication
A Class-S Emergency Position-Indicating Radio Beacon (E.P.I.R.B)

Must have its battery replaced after emergency use
Must be capable of floating or being secured to a survival
All of these
May be tested during the first five minutes of any hour

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MORE MCQ ON Microwave Communication

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