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Rich AI7KI

I am probably more newbie than you and not qualified to answer the question. But I may be able to answer part of the question. I own a NanoVNA-H. The firmware supports more than ten different versions of NanoVNA; many of which have different sizes and resolution of display. On this forum, there are people that own a NanoVNA of each possible version.

I am too uneducated at this time explain all the different possibilities; perhaps another forum member can jump in and elaborate.

30 Billy


________________________________
From: [email protected] <[email protected]> on behalf of Richard Groot via groups.io <richgroot@...>
Sent: Sunday, December 19, 2021 11:26
To: [email protected] <[email protected]>
Subject: Re: [nanovna-users] NanoVNA as a Signal Generator

So (newbie here) I've seen some versions of nanoVNA that capture 1000 data
points rather than 101. What are the consequences of the larger number of
points?

Thanks,
Rich AI7KI

On Sun, Dec 19, 2021 at 9:48 AM Donald S Brant Jr <dsbrantjr@...>
wrote:

Stan: All very good comments. I would like to expand on your statement
regarding calibration interpolation. How "nice" a job it does depends
somewhat on the quality of the instrument and setup (cables, adapters,
etc.); If the setup is well-matched (to 50Ω) and low loss, and does not
have any resonances, the software will be able to interpolate well. I do
not believe that it will extrapolate outside of a calibrated range,
however.
But you need to keep in mind the sweep width and number of discrete
measurement points so that you do not miss an important feature by stepping
past it; this would be an issue with a narrowband filter or high-Q antenna
such as a tuned loop..

73, Don N2VGU