Unofficial NanoVNA v2 USB Python library and tools

This library is work in progress

This is a small library that allows to access the NanoVNA v2 vector network analyzer using Python. It implements the VectorNetworkAnalyzer base class of pylabdevs (since this is work in progress there is currently an unfinished copy in this repository).

Tools

nanovnav2fetch

The nanovnav2fetch is a very simple command line utility that allows one to fetch the S00 and S01 parameters as well as phases from the NanoVNA v2. Note that this utility always depends on numpy and requires matplotlib to plot or show the traces.

$ nanovnav2fetch --help
usage: nanovnav2fetch [-h] [--port PORT] [--debug] [--s00] [--s01] [--phases]
                      [--show] [--plot [PLOT ...]] [--plottitle PLOTTITLE]
                      [--label00 LABEL00] [--label01 LABEL01] [--npz NPZ]
                      [--start START] [--end END] [--step STEP]

NanoVNA v2 USB fetching utility

optional arguments:
  -h, --help            show this help message and exit
  --port PORT           Port to access the NanoVNA v2 (default: /dev/ttyU0)
  --debug               Enable debug mode on the NanoVNA v2
  --s00                 Gather S00 values
  --s01                 Gather S01 values
  --phases              Gather phases for all enabled channels
  --show                Display the rendered graphics (requires matplotlib)
  --plot [PLOT ...]     Supply filename that will be used to plot graphics
                        (required matplotlib)
  --plottitle PLOTTITLE
                        Title for the plot
  --label00 LABEL00     Label for the S00 parameter
  --label01 LABEL01     Label for the S01 parameter
  --npz NPZ             Dump data into supplied NPZ file
  --start START         Start frequency in Hz (default: 50 MHz)
  --end END             End frequency in Hz (default: 4.4 GHz)
  --step STEP           Step size in Hz (default: 1 kHz)