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Group: I have a Nano-F V. 3.1 but have never controlled it from my computer. I'd like to do that, as I need to generate and save an S1P file for some RF transformer work I'm doing.

Can someone please recommend the best public-domain software to use, something that is not buggy or full of spyware? Again, I want to generate and save an S1P file of a sweep.

Many thanks,

On 7/1/23 1:07 PM, Diogenio via groups.io wrote:

Group: I have a Nano-F V. 3.1 but have never controlled it from my computer. I'd like to do that, as I need to generate and save an S1P file for some RF transformer work I'm doing.
Can someone please recommend the best public-domain software to use, something that is not buggy or full of spyware? Again, I want to generate and save an S1P file of a sweep.

I use NanoVNA-Saver (which is in Python, and runs on any platform). Others like NanoVNA-App, which is Windows only.

Those two seem to be popular.

If you're looking for something minimalist, there's nanovna.py - it's a command line utility that I use if I just want to command the nanovna from a script.

#!/usr/bin/env bash
time
./nanovna.py --start 50000 --stop 100000000 --points 201 -o testxyz --port 0
time

does a sweep from 50kHz to 100 MHz with 201 points and stores the output in a file called testxyz.s1p.

I also have a nanoVNA-F with which I am very satisfied: use f < 300 MHz). Thanks to this forum I was able to update the Firmware. It is not essential but we can thus recover the .sp1 and .sp2 files produced by the box directly.

In reality I use my nanoVNA-F always connected to the nanovna-saver software which extends, with the notion of segment, the use of the box. I do a large part of the calculations from the .sp1 and .sp2 files produced by nanaovna-saver. It is good to set nanaovna-saver to produce a lot of measurement points. 2010 measurements is a bit slow but generally optimum.

Using nanovna-saver is quite easy. Remember to reset the CALIBRATE / RESET box each time before using nanovna-saver. It "normalizes" calibrations and measurements on the same basis.

If you are on Windows 10 or above, the standard version installs without problem. I'm on Seven and you need either a specific version or an old version.
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