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Which of the following amplifiers is used in the transmitter substation?

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Which of the following amplifiers is used in the transmitter substation?

(a) RF amplifiers

(b) Buffer amplifiers

(c) Klystron amplifier

(d) Operational amplifiers

The question was posed to me in semester exam.

The doubt is from Ground Stations topic in portion Satellite Communication of Avionics

1 Answer

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Right answer is (c) Klystron amplifier

To elaborate: The signals to be sent to the satellite might be TV programs, multiple telephone calls, or digital data from a computer. These signals are used to modulate the carrier, which is then amplified by a large traveling-wave tube or klystron amplifier.

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