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Frequency Deviation in FM is defined as the way to describe the difference between the minimum and maximum extent of a frequency modulated signal and the carrier frequency. Check FAQs
Δf=β⋅fmod
Δf - Frequency Deviation?β - Modulation Index in FM?fmod - Modulating Frequency?

Frequency Deviation provided Modulation Index Example

With values
With units
Only example

Here is how the Frequency Deviation provided Modulation Index equation looks like with Values.

Here is how the Frequency Deviation provided Modulation Index equation looks like with Units.

Here is how the Frequency Deviation provided Modulation Index equation looks like.

30Edit=0.6Edit⋅50Edit
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Frequency Deviation provided Modulation Index Solution

Follow our step by step solution on how to calculate Frequency Deviation provided Modulation Index?

FIRST Step Consider the formula
Δf=β⋅fmod
Next Step Substitute values of Variables
∴ Δf=0.6⋅50Hz
Next Step Prepare to Evaluate
∴ Δf=0.6⋅50
LAST Step Evaluate
∴Δf=30Hz

Frequency Deviation provided Modulation Index Formula Elements

Variables
Frequency Deviation
Frequency Deviation in FM is defined as the way to describe the difference between the minimum and maximum extent of a frequency modulated signal and the carrier frequency.
Symbol: Δf
Measurement: FrequencyUnit: Hz
Note: Value should be greater than 0.
Formulas to find Frequency DeviationOpen Variable
Modulation Index in FM
Modulation Index in FM Wave is the ratio of frequency deviation (Δf) to the modulating frequency (fm).
Symbol: β
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Formulas to find Modulation Index in FMOpen Variable
Modulating Frequency
Modulating Frequency is the encoding of information in a carrier wave by changing the instantaneous frequency of the wave.
Symbol: fmod
Measurement: FrequencyUnit: Hz
Note: Value should be greater than 0.
Formulas to find Modulating FrequencyOpen Variable

Other Formulas to find Frequency Deviation

​Go Frequency Deviation
Δf=Kf⋅Am(peak)

Other formulas in Frequency Modulation category

​Go Bandwidth in DSB-SC
BWDSB=2⋅fm-DSB
​Go Bandwidth of VSB
BWVSB=fm-DSB+fv-DSB
​Go Pre Detection Signal to Noise Ratio
SNRpre=ADSB2⋅PDSB-SC2⋅N0-DSB⋅BWt-DSB
​Go Transmitted Power of DSB-SC
Pt-DSB=PU-DSB+PL-DSB

How to Evaluate Frequency Deviation provided Modulation Index?

Frequency Deviation provided Modulation Index evaluator uses Frequency Deviation = Modulation Index in FM*Modulating Frequency to evaluate the Frequency Deviation, Frequency Deviation provided Modulation Index is the way to describe the difference between the minimum and maximum extent of a frequency modulated signal and the carrier frequency. Frequency Deviation is denoted by Δf symbol.

How to evaluate Frequency Deviation provided Modulation Index using this online evaluator? To use this online evaluator for Frequency Deviation provided Modulation Index, enter Modulation Index in FM (β) & Modulating Frequency (fmod) and hit the calculate button.

FAQs on Frequency Deviation provided Modulation Index

What is the formula to find Frequency Deviation provided Modulation Index?
The formula of Frequency Deviation provided Modulation Index is expressed as Frequency Deviation = Modulation Index in FM*Modulating Frequency. Here is an example- 30 = 0.6*50.
How to calculate Frequency Deviation provided Modulation Index?
With Modulation Index in FM (β) & Modulating Frequency (fmod) we can find Frequency Deviation provided Modulation Index using the formula - Frequency Deviation = Modulation Index in FM*Modulating Frequency.
What are the other ways to Calculate Frequency Deviation?
Here are the different ways to Calculate Frequency Deviation-
  • Frequency Deviation=Frequency Sensitivity*Peak Amplitude of MessageOpenImg
Can the Frequency Deviation provided Modulation Index be negative?
No, the Frequency Deviation provided Modulation Index, measured in Frequency cannot be negative.
Which unit is used to measure Frequency Deviation provided Modulation Index?
Frequency Deviation provided Modulation Index is usually measured using the Hertz[Hz] for Frequency. Petahertz[Hz], Terahertz[Hz], Gigahertz[Hz] are the few other units in which Frequency Deviation provided Modulation Index can be measured.
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