Bandwidth definition
Today you will enjoy to learn something new about bandwidth, You will learn in this post actual meaning of bandwidth, What is bandwidth ? examples of bandwidth, types of bandwidth, how bandwidth is measured ? What is bandwidth limit ? What is device bandwidth ? What is difference between bandwidth and speed ? You will learn all about bandwidth in easy way, so that you will never forget bandwidth, lets start.
What is bandwidth ?
In communication when you are sending signals, So first you should understand what are signals ? The signals are variation of voltage, but made of what ? you can think from where this variation comes ?.
The answer is simple, it is message signal created by the source,like if you are sending your voice and communicating it. Now your voice is made by vibration of your vocal cords, which start the wave, this wave is again converted into electrical signal in the form of voltage.
This frequency is a constant and remains constant, whether it is converted into electrical form which is voltage.What types of frequency generated by your vocal cords ? there is a particular value of frequency generated by your vocal cords.
It is not an unique and single value of frequency generated by your vocal cords, It is a combination of frequencies generated by vocal cords.
So there are so many frequencies which are generated at a time, because there are so many particle of vocal cords and all are vibrating with different frequency , but there is a mean frequency all of them.
Hence there are two things one is all frequencies and other is a mean frequency, all there frequencies are around the mean frequency.
Suppose you are speaking and the mean frequency is 300 Hz, May be there are certain lyrics in your voice, which are at 250 Hz and 350 Hz, See there is a range of frequencies in your voice which is 250, 300, 350 Hz. This range is called bandwidth of your voice see below picture.
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