1. The problem statement, all variables and given/known data Since the Fourier Transform of a rectangular Pulse with a half period of Tp contains an infinite number of frequencies, how can you find the max one to check if Nyquist's theorem holds? 2. Relevant equations http://en.wikipedia.org/wiki/Nyquist–Shannon_sampling_theorem 3. The attempt at a solution I don't suppose Ωmax = 2*pi / Tp ?