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Television and Video
Electronics Engineering
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Waves Vibrations and Oscillations

What property of modulating frequency is varied for frequency deviation?


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2008-01-22 03:37:02
2008-01-22 03:37:02

FM is the carrier property when terms like `frequency deviation' are used.

Unlike AM, which has a single frequency, and the frequency is modulated by increasing the amplitude of the frequency, with FM, it's the frequency itself that is changed, either by making the frequency a bit higher or lower from the actual stated frequency.

For instance, a FM radio station located at 100.00 on the dial will have the frequency deviate by plus or minus 75 kilohertz (+100.075 HZ or - 99.925 HZ.) or more commonly referred to as a bandwidth of 150 KHZ. for 100% modulation.


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