To estimate bandwidth using a Bessel function table, you must know the modulating index β and modulating frequency fₘ:
Find the minimum value of Jᵥ(β) above 0.01 (or any value deemed the minimum significant value) by referring to a Bessel function table.
Determine the number of sideband pairs N in the signal, equal to the order v of the Bessel function Jᵥ(β).
Substitute N and fₘ in the formula B = 2fₘN to get the bandwidth B.
Be proud of yourself for solving a not-so-simple problem in a not-so-complex manner!
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