Electronic Devices - Communications
Exercise : Communications - True or False
- Communications - General Questions
- Communications - True or False
6.
Selectivity in a receiver is provided by the resonant circuits of the IF section.
7.
An AM signal is made up of a carrier, an upper-side frequency, and a lower-side frequency.
8.
Frequency modulation is achieved by varying the frequency of an oscillator with a modulating signal.
9.
A VCO is a variable capacitance oscillator.
Answer: Option
Explanation:
A voltage-controlled oscillator or VCO is an electronic oscillator designed to be controlled in oscillation frequency by a voltage input.
10.
Amplitude modulation is the process of varying the radio frequency with the modulating frequency.
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