kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
94 wiersze
3.2 KiB
Markdown
94 wiersze
3.2 KiB
Markdown
NanoVNASaver
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============
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A small tool to save touchstone files from the NanoVNA, and to allow sweeping frequency spans in sections to gain more than 101 data points.
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Copyright 2019 Rune B. Broberg
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### Introduction
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This software connects to a NanoVNA and extracts the data for display on a computer, and for saving to Touchstone files.
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Current features:
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- Reading data from a NanoVNA
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- Splitting a frequency range into multiple segments to increase resolution (tried up to >10k points)
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- Displaying data on Smith charts and LogMag-charts for both S11 and S21
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- Displaying two markers, and the impedance and VSWR (against 50 ohm) at these locations
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- Exporting 1-port and 2-port Touchstone files
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- TDR function (measurement of cable length)
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- Reading and displaying Touchstone files as reference traces
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Expected features:
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- Mouse control of markers
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- Further data readout for markers, such as return loss/forward gain
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0.0.6:
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0.0.3:
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### Windows
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The software was written in Python on Windows, using Pycharm, and the modules PyQT5, numpy and pyserial.
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### Linux
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In order to run this app in Linux environment, you'll need the following packages:
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* `python3-serial`
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* `python3-pyqt5`
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* `numpy`
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## Ubuntu 18.04 & 19.04
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### Installation and Use with pip
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1. Install python3.7 and pip
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- `sudo apt install python3.7 python3-pip`
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2. Clone repo and cd into the directory
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- `git clone https://github.com/mihtjel/nanovna-saver`
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- `cd nanovna-saver`
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3. Run the pip installation
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- `python3.7 -m pip install .`
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4. Once completed run with the following command
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- `python3.7 nanovna-saver.py`
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## Windows
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### Installation and Use with pip
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1. Clone repo and cd into the directory
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- `git clone https://github.com/mihtjel/nanovna-saver`
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- `cd nanovna-saver`
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2. Run the pip installation
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- `pip3 install .`
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3. Once completed run with the following command
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- `NanoVNASaver`
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### Using the software
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Connect your NanoVNA to a serial port, and enter this serial port in the serial port box. Click "Open serial" to connect.
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The app can collect multiple sweeps to get more accurate measurements. Enter the number of sweeps to be done in the
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sweep count box. Each sweep is 101 data points, and takes about 1.5 seconds to complete.
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Marker frequencies are entered in Hz. Press enter after typing the frequency for it to take effect.
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To get accurate TDR measurements, calibrate the device, and attach the cable to be measured at the calibration plane -
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ie. at the same position where the calibration load would be attached.
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### License
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This software is licensed under version 3 of the GNU General Public License. It comes with NO WARRANTY.
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You can use it, commercially as well. You may make changes to the code, but I (and the license) ask that you give these changes back to the community.
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### Credits
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Original application by Rune B. Broberg (5Q5R)
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TDR inspiration shamelessly stolen from the work of Salil (VU2CWA) at https://nuclearrambo.com/wordpress/accurately-measuring-cable-length-with-nanovna/
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Thanks to everyone who have tested, commented and inspired.
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