On very handy reading when making a wide frequency sweep of an inductor,is that you easily see the jump where the inductor is self resonance.
You really don't want to use an inductor above it's self resonance frequency.
It the inductor S.R.F. is say 100 MHz, then above 100 MHz it looks like a capacitor, not an inductor.
Kent WA5VJB
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On Sunday, August 15, 2021, 12:30:36 PM CDT, Joe WB9SBD <nss@...> wrote:
Hi Dave,
Ok I'll try both methods and see if it comes up with different answers.
Now is there anywhere a he he he "Video" or a written step by step etc,
on how to do the smith chart way?
Joe WB9SBD
On 8/15/2021 11:41 AM, David Eckhardt wrote:
Is everything these days a YouTube "presentation".? I'm not knocking what
is presented, as the theory is sound and is rather reminiscent of the setup
employed when measuring inductance with a grid dip oscillator, but a bit
more accurate.
Any of the NANOs can measure inductance (and capacitance) directly using
the Smith Chart option and the Cursors.? Once calibrated, the inductor is
connected across the source port directly, yes, both center pin and
backshell of the connector.? It will be in parallel with that port.? Once
configured, the value of the real part and the equivalent reactance of the
complex port (the inductor) can be easily read in the upper left of the
NANO display.? The NANOs can also be configured to simply display the
reactance of the complex part directly instead of the equivalent value of
the lumped inductor.? Again, just an absolutely wonderful instrument which
compares embarrassingly well to the (expensive) HP/Agilent/Keysite VNAs.
