And because the spectrum of the discrete time sign, this similar spectrum will periodically repeat if we extended the frequency bigger outside of $f_s$ these types of that the spectrum demonstrated is also exactly the same spectrum in every frequency band from $nf_s$ to $(n+1)f_s$ for almost any integer $n$. https://pgingurgaon.science.blog/2025/07/29/find-the-best-boys-pg-in-sector-15-gurgaon-live-near-college/