And because the spectrum of a discrete time sign, this same spectrum will periodically repeat if we extended the frequency bigger further than $f_s$ such the spectrum revealed can also be the identical spectrum in each individual frequency band from $nf_s$ to $(n+one)f_s$ for any integer $n$. a : ore https://boyspggurgaonsector14.school.blog/2025/07/28/top-student-friendly-pg-in-gurgaon-sector-14-only-at-osmstays/