开云体育

Question, why when I set a center frequency of 910.525 MHz on my Nano VNA-H4 (as I did here within this image) then I set a marker for 910.525MHz, they are offset from each other?

The marker will go to the nearest scan point. You have your H4 set for 101pts, you can set it to 401 for much finer resolution.

Paul,
In your screenshot, the vertical grid line nearest the center is at 910.000 MHz, the nearest "round" number.
Does that explain the offset you see?
--John Gord