QUOTE: Consider this a benefit of the tiny battery powered Nano VNA. A
measurement can be made with minimal impact on the device under test.
Indeed. You hit the nail on squarely on the head. Consider the HP 8753C
with the S-Parameter test set. It weight in around 100+ lbs. I can not
use it with anything that requires a counterpoise or isolation from the
instrument as its too large, sits on a metal shelf, and is connected to the
power grid: a MAJOR increase in any counterpoise. The NANOVNAs allow me
to make measurments that the 8753C really can not make.
However, when one needs to measure at or above our 70-cm band, the size of
the NANOs become significant.
Dave - W?LEV
On Fri, Aug 25, 2023 at 3:50?PM Greg Strickland <greg@...>
wrote:
Last night I was measuring a high Q resonant circuit on the bench with
Nano VNA on battery. The battery was getting low and without physically
moving anything I connected a USB cable from Nano VNA to laptop a few feet
away. The measurement moved just a bit. Not a cause for concern because
it makes sense. Consider this a benefit of the tiny battery powered Nano
VNA. A measurement can be made with minimal impact on the device under
test.
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*Dave - W?LEV*
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Dave - W?LEV
