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The transmission of data by dots and dashes is an example of ___________(a) Amplitude modulation(b) Frequency modulation(c) Continuous wave transmission(d) Discrete signal transmissionThis question was addressed to me in an internship interview.This intriguing question originated from Radio Transmitters in chapter Radio Transmitters, Communication Receivers, Multiplexing and Demultiplexing of Avionics

Answer» CORRECT option is (C) Continuous wave transmission

Explanation: The oscillator generates the carrier and can be SWITCHED off and on by a telegraph key to PRODUCE the dots and dashes of the International Morse code. Information transmitted in this way is referred to as continuous-wave (CW) transmission. Such a transmitter is rarely used today.


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