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NBFM & WBFM (Narrow band frequency modulation & Wide band frequency modulation) simple explanation. By Yuvi - Study Point

Hey everyone, today we are going to learn about NBFM & WBFM (Narrowband frequency modulation & Wideband frequency modulation) in simple or easy way.
So, without wasting any time lets get started.

The information about NBFM & WBFM
  • When the spectrum's efficiency is important or it is required then we use NBFM (Narrowband frequency modulation) is used. 
  • But when better signal quality is required or when it is important then we use WBFM (Wideband frequency modulation).
  • The term NBFM is used for those applications where the modulation index is less than or equal to 1.
  • And the term WBFM is used for those applications where the modulation index is greater than or equal to 1.
  • Now, let's see more difference between Narrow band frequency modulation(NBFM) and Wideband frequency modulation(WBFM).
  • The term narrow-band and wide-band refer to the actual radio channel bandwidth.
The purpose or advantage of using NBFM (Narrowband frequency modulation)
  • The purpose or advantage of using a narrow channel is that the bandwidth of noise in a narrow channel is less and due to this, the sensitivity becomes better and range also becomes better.
The benefits or advantages of using a wide channel or WBFM (Wideband frequency modulation)
  • And the benefits or advantage of using a WBFM (Wideband frequency modulation) is that it can transfer or we can say that it has the capability to transfer higher data rates which means in very less time it can transfer more data. 
Where to use Narrowband frequency modulation & Wideband frequency modulation is used?
  • Narrowband frequency modulation is used in voice communication in commercials and it is also used in radio settings, etc.
  • And in broadcast services where audio fidelity is important, their Wideband frequency modulation is used.   
{ If you guys want a further brief explanation with single tone expression of both NBFM(Narrowband frequency modulation) & WBFM(Wideband frequency modulation) then please go and check out my video which is given below and also check out my channel. The video link is also given below. }



https://youtu.be/NIfRYWGBAR8

Thank you!

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