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Microwave Communication

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

RF emitter
Varactor-triac
Ferrite emitter
Capacitor

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

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

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Microwave Communication
If k-factor is greater than 1, the array beam is bent

Towards the ionosphere,
Away from the earth
Towards the outer space
Towards the earth

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Microwave Communication
In microwave transmission using digital radio, what causes most intersymbol interference?

Rayleigh fading
Random Doppler shift
Slow fading
Delayed spreading

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Microwave Communication
Which of the following is used as a high power microwave oscillator?

Klystron
Thyratron
Magnetron
Reflex-klystron

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

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

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MORE MCQ ON Microwave Communication

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