On Mon, Jul 18, 2022 at 03:27 AM, Observer wrote:
How does the nanovna measure ?
I believe it works like this:
It sends a pulse of RF at the Nano's 'start frequency' and analyzes the phase and amplitude of the return signal (like an echo?). Then it sends a pulse at the next frequency step, and so on for the number of steps programmed (usually 99, I think).
For each echo pulse, it calculates the L, C, etc. values from the phase difference between the transmitted pulse and the received pulse.
To see the data that actually results, look at the contents of an s1p or s2p file that the Nano can save (maybe only using the 'NanoVNA-Saver' program). (The -F nano can save s1p/s2p files to its own internal storage.)
--
Doug, K8RFT
