> At resonance, X is not necessarily zero in R +
jX...it is
> only at a minimum. From the MFJ manual (W8JI's words I
believe):
>
> "RESONANT FREQUENCY is where reactance is zero ohms, or in
some
> cases as close to zero ohms as the MFJ-259B indicates."
That wording is included for two reasons:
The analyzer is susceptible to external voltages. As little
as a few millivolts external voltage can make the analyzer
not read zero.
There also can be calibration problems. (For a period of
time every analyzer was actually calibrated incorrectly.)
Reactance should be zero at resonance but the meter might
not dip to zero fully.
73 Tom
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Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
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