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What is found in frequency modulation ? |
| Answer» <html><body><p> Fixed frequency</p><br/><br/><p>Frequency modulation (FM) <a href="https://interviewquestions.tuteehub.com/tag/conveys-7669897" style="font-weight:bold;" target="_blank" title="Click to know more about CONVEYS">CONVEYS</a> information over a carrier wave by <a href="https://interviewquestions.tuteehub.com/tag/varying-2320186" style="font-weight:bold;" target="_blank" title="Click to know more about VARYING">VARYING</a> its instantaneous frequency. This contrasts with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant. Frequency modulation is <a href="https://interviewquestions.tuteehub.com/tag/also-373387" style="font-weight:bold;" target="_blank" title="Click to know more about ALSO">ALSO</a> used in telemetry, <a href="https://interviewquestions.tuteehub.com/tag/radar-1175635" style="font-weight:bold;" target="_blank" title="Click to know more about RADAR">RADAR</a>, seismic prospecting and newborn EEG <a href="https://interviewquestions.tuteehub.com/tag/seizure-630279" style="font-weight:bold;" target="_blank" title="Click to know more about SEIZURE">SEIZURE</a> monitoring. Frequency modulation is known as phase modulation when the carrier phase modulation is the time integral of the FM signal. FM is widely used for broadcasting music and speech, two-way radio systems, magnetic taperecording systems and some video-transmission systems.</p></body></html> | |