by VirtinsTech » Mon Dec 12, 2016 9:54 am
Thank you for your questions. Kaiser 6 window function is recommended for THD measurement. The loopback THD will be a little better if Kaiser 6 window is used instead of Hamming window.
More importantly, VT DSO-2810 is not designed to measure low THD as indicated by its own THD figures in the specifications.