Question

An FM signal has an intelligence frequency of 5 KHz, a maximum deviation of 30 KHz, and a carrier frequency of 162.4 MHz. Use the Bessel Function chart to answer the following:

a) Its bandwidth

b) How many frequency components are there in the output spectrum?

c) What is the frequency of the highest frequency component within its bandwidth?

Answer 1

fns :-Given that, fm=5KH2, af = 30 K H2 and fm5K meditation, In FM vs ( )-Y Σ Jn 1B)cos (4+14% n LS) is the Bessel Junction. and vom Bessel Junction chart the spectval components are from n=o , t i , t a, upto ±9 tre armer component (n=o) and side bard specta! Components from n- to n-q x Total frenuency com ponents are 18 Side band Components and corrier compnent (. te. 19) Randuidth tighest component twith 2 (5K) x reą uenay Highest reqtienas compenent is frequencu 6a 435 MH2

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