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Modulation Index of FM Wave Formula

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Modulation Index in FM Wave is the ratio of frequency deviation (Δf) to the modulating frequency (f_m). Check FAQs

β = \frac{Δf}{f mod}

β - Modulation Index in FM?Δf - Frequency Deviation?f_mod - Modulating Frequency?

Modulation Index of FM Wave Example

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Here is how the Modulation Index of FM Wave equation looks like with Values.

Here is how the Modulation Index of FM Wave equation looks like with Units.

Here is how the Modulation Index of FM Wave equation looks like.

0.6 = \frac{30}{50}

0.6 = \frac{30Hz}{50Hz}

0.6 = \frac{30}{50}

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Modulation Index of FM Wave Solution

Follow our step by step solution on how to calculate Modulation Index of FM Wave?

FIRST Step Consider the formula

β = \frac{Δf}{f mod}

Next Step Substitute values of Variables

∴

β = \frac{30Hz}{50Hz}

Next Step Prepare to Evaluate

∴

β = \frac{30}{50}

LAST Step Evaluate

∴

β = 0.6

Modulation Index of FM Wave Formula Elements

Variables

Modulation Index in FM

Modulation Index in FM Wave is the ratio of frequency deviation (Δf) to the modulating frequency (f_m).

Symbol: β

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Modulation Index in FM

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 Deviation

Modulating Frequency

Modulating Frequency is the encoding of information in a carrier wave by changing the instantaneous frequency of the wave.

Symbol: f_mod

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Modulating Frequency

Other formulas in Frequency Modulation category

Go Bandwidth in DSB-SC

BW DSB = 2 \cdot f m-DSB

Go Bandwidth of VSB

BW VSB = f m-DSB + f v-DSB

Go Pre Detection Signal to Noise Ratio

SNR pre = \frac{{A DSB}^{2} \cdot P DSB-SC}{2 \cdot N 0-DSB \cdot BW t-DSB}

Go Transmitted Power of DSB-SC

P t-DSB = P U-DSB + P L-DSB

How to Evaluate Modulation Index of FM Wave?

Modulation Index of FM Wave evaluator uses Modulation Index in FM = Frequency Deviation/Modulating Frequency to evaluate the Modulation Index in FM, Modulation Index of FM Wave is the ratio of frequency deviation (Δf) to the modulating frequency (fm). Modulation Index in FM is denoted by β symbol.

How to evaluate Modulation Index of FM Wave using this online evaluator? To use this online evaluator for Modulation Index of FM Wave, enter Frequency Deviation (Δf) & Modulating Frequency (f_mod) and hit the calculate button.

FAQs on Modulation Index of FM Wave

What is the formula to find Modulation Index of FM Wave?

The formula of Modulation Index of FM Wave is expressed as Modulation Index in FM = Frequency Deviation/Modulating Frequency. Here is an example- 0.6 = 30/50.

How to calculate Modulation Index of FM Wave?

With Frequency Deviation (Δf) & Modulating Frequency (f_mod) we can find Modulation Index of FM Wave using the formula - Modulation Index in FM = Frequency Deviation/Modulating Frequency.

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Modulation Index of FM Wave Formula

Modulation Index of FM Wave Example

Modulation Index of FM Wave Solution

Modulation Index of FM Wave Formula Elements

Other formulas in Frequency Modulation category

How to Evaluate Modulation Index of FM Wave?

FAQs on Modulation Index of FM Wave

Variable Name