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Distinguish between narrowband and wideband FM.

written 7.1 years ago by teamques10 ★ 70k

•   modified 7.1 years ago

Subject: Principles of Communication Engineering

Difficulty : Medium

Marks : 05

principles of communication network

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1 Answer

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written 7.1 years ago by teamques10 ★ 70k

•   modified 7.1 years ago

Sr No.	Narrow Band FM	Wide Band FM
1	Modulation index is less than 1	Modulation index is greater than 1
2	Frequency Deviation = 5KHz	Frequency Deviation = 75KHz
3	Modulating Frequency = 3KHz	Modulating frequency range from 30 Hz to 15KHz
4	Bandwidth = 2fm	Bandwidth 15 times NBFM, Bandwidth = $2(\delta+fm_{max})$
5	Maximum modulation index is slightly greater than 1	Maximum modulation index between 5 to 2500

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