Question
Download Solution PDFNarrowband FM is used in which of the following applications?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is: 4) Two-way mobile radio communication
Explanation:
Narrowband FM (NBFM) is characterized by:
Small frequency deviation (typically ±5 kHz or less).
Limited bandwidth (just wide enough for voice communication).
Primary Applications:
- Two-way mobile radios (e.g., police, ambulance, taxi communications).
- Aviation and marine VHF radios.
- Amateur radio (ham) transmissions.
Why Not the Other Options?
- Television transmission → Uses wideband FM for audio (higher fidelity) or AM for video.
- High-fidelity audio systems → Requires wideband FM (e.g., ±75 kHz deviation for FM radio).
- FM radio broadcasting → Uses wideband FM (88–108 MHz band with large deviation).
Last updated on Jun 7, 2025
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