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When using my NanoVNA to adjust length of a 20m hamstick, the readings kept changing depending on what the NanoVNA was sitting on (truck hood, pelican case, my thigh, or in my hand).

How do I get a reliable reading that I can count on for a properly adjusted antenna?
Thanks, Coyote

This is quite normal. What you are doing in handling or connecting your
NANOVNA to something is adding yourself or a laptop or charger to the
antenna you are attempting to measure. Sit the NANO on a wooden crate or
something non-conducting and away from anything conducting. Do not connect
it to anything or hold it. That will give you a correct reading without
you or accessories becoming part of the antenna.

Dave - W?LEV

On Mon, Feb 3, 2025 at 1:07?AM Coyote via groups.io <KO4UPH=
[email protected]> wrote:

When using my NanoVNA to adjust length of a 20m hamstick, the readings
kept changing depending on what the NanoVNA was sitting on (truck hood,
pelican case, my thigh, or in my hand).

How do I get a reliable reading that I can count on for a properly
adjusted antenna?
Thanks, Coyote

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*Dave - W?LEV*


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Dave - W?LEV

Thank you, Dave W0LEV,

I suspected this was the case. Thank you for taking time to reply and explain. I look forward to learning more about this useful tool.

Yours, Coyote KO4UPH