Ham op wrote:
Roy, if he reads the impedance value he can determine resonance by the
absence of the reactive term.

Do you agree that the SWR scan is a poor method of determining resonance?

No, I usually use the SWR sweep to determine resonance. Stepping the
cursor and looking at the impedance at each step quickly identifies the
resonant frequency to within the closest step. Additional narrower scans
are done as necessary to get more precision. What method do you use
that's better?

Roy Lewallen, W7EL