So why not just use it with 50-ohm center on the Smith Chart? It will
easily show 75-ohms to the right of center on the central horizontal line
with a non-reactive resistor. By design, the NANOVNAs are 50-ohm devices
at both ports as are high-$$$ units. Pretty much only the TV and CATV
people use 75-ohms. The rest of the RF and ?W industries use 50-ohms.
If you absolutely require 75-ohm ports, you could construct a loss matching
pad from 50-ohms to 75-ohms. You will lose a bit of dynamic range in doing
so.
Dave - W?LEV
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Virus-free.www.avg.com
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On Thu, Nov 28, 2024 at 6:36?PM John via groups.io <radio=
netins.net@groups.io> wrote:
Is there firmware for the NanoVNA-H that supports selecting the port
impedance (as is available on the VNA-H$)?
--
*Dave - W?LEV*
--
Dave - W?LEV
