On Thu, Jun 29, 2023 at 05:53 PM, Roger Need wrote:
You are way too close to the coil being tested. The inductance of your coil
is affected by the proximity of another coil and this affects the SRF
measurement. Once you have a dip on the NanoVNA you need to keep reducing
the distance until the dip is barely seen. Then you measure the frequency.
Roger
I made a new sending coil and it works a lot better now.
--
Mike
