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## Homework Statement

For the FM modulation, the amplitudes of the side bands can be predicted from

v(t)=ΣAJ

_{n}(I)sin(ωt)

Where is a sideband frequency and

*Jn(I)*is the Bessel function of the first kind and the

*nth*order evaluated at the modulation index .Given the table of Bessel functions, assuming

*A*=1, and a modulation index of 2, calculate the voltage amplitude in dB for one of the side bands frequencies relative to the amplitude at 500 Hz.

## Homework Equations

I=frequency deviation/modulator frequency

f

_{c}=+/- nf

_{m}

## The Attempt at a Solution

Reading the table where x=I=2 (modulation index): n=0 gives 0.224 and n=1 gives 0.577 I assume n=1 would correspond to the first pair of sidebands. I don't know what to do beyond this point though.