And because the spectrum of a discrete time signal, this exact same spectrum will periodically repeat if we extended the frequency better past $f_s$ these kinds of the spectrum demonstrated is additionally the identical spectrum in just about every frequency band from $nf_s$ to $(n+1)f_s$ for just about any integer https://pgsector15gurugram.blogspot.com/2025/07/book-affordable-1-rk-for-rent-in.html