kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
Holger Müller
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README.md
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README.md
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[](https://github.com/mihtjel/nanovna-saver/releases/latest)
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[](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=T8KTGVDQF5K6E&item_name=NanoVNASaver+Development¤cy_code=EUR&source=url)
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NanoVNASaver
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============
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A multiplatform tool to save Touchstone files from the NanoVNA, sweep frequency spans in segments to gain more than
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101 data points, and generally display and analyze the resulting data.
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NanoVNASaver ============ A multiplatform tool to save Touchstone files from
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the NanoVNA, sweep frequency spans in segments to gain more than 101 data
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points, and generally display and analyze the resulting data.
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Copyright 2019, 2020 Rune B. Broberg
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## Changes in this fork
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This fork adds support for the saa2, a vna loosely based on the original nanovna with frequency range up to 3Ghz.
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## Changes in this fork
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- This fork adds support for the saa2, a vna loosely
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based on the original nanovna with frequency range up to 3Ghz.
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- Added ability to add attenutor values in s11 sweep settings
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for amplifier measuremnts
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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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## Introduction This software connects to a NanoVNA and extracts the data for
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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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-- Compatible devices: NanoVNA, NanoVNA-H, NanoVNA-H4, NanoVNA-F, AVNA via Teensy
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- Splitting a frequency range into multiple segments to increase resolution (tried up to >10k points)
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- Reading data from a NanoVNA -- Compatible devices: NanoVNA, NanoVNA-H,
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NanoVNA-H4, NanoVNA-F, AVNA via Teensy
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- Splitting a frequency range into multiple segments to increase resolution
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(tried up to >10k points)
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- Averaging data for better results particularly at higher frequencies
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- Displaying data on multiple chart types, such as Smith, LogMag, Phase and VSWR-charts, for both S11 and S21
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- Displaying markers, and the impedance, VSWR, Q, equivalent capacitance/inductance etc. at these locations
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- Displaying customizable frequency bands as reference, for example amateur radio bands
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- Displaying data on multiple chart types, such as Smith, LogMag, Phase and
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VSWR-charts, for both S11 and S21
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- Displaying markers, and the impedance, VSWR, Q, equivalent
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capacitance/inductance etc. at these locations
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- Displaying customizable frequency bands as reference, for example amateur
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radio bands
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- Exporting and importing 1-port and 2-port Touchstone files
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- TDR function (measurement of cable length) - including impedance display
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- Filter analysis functions for low-pass, high-pass, band-pass and band-stop filters
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- Filter analysis functions for low-pass, high-pass, band-pass and band-stop
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filters
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- Display of both an active and a reference trace
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- Live updates of data from the NanoVNA, including for multi-segment sweeps
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- In-application calibration, including compensation for non-ideal calibration standards
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- In-application calibration, including compensation for non-ideal calibration
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standards
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- Customizable display options, including "dark mode"
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- Exporting images of plotted values
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@ -41,17 +50,20 @@ Current features:
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### Windows
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The software was written in Python on Windows, using Pycharm, and the modules PyQT5, numpy, scipy and pyserial.
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The software was written in Python on Windows, using Pycharm, and the modules
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PyQT5, numpy, scipy and pyserial.
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#### Binary releases
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You can find the latest binary (.exe) release for Windows at https://github.com/mihtjel/nanovna-saver/releases/latest
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You can find the latest binary (.exe) release for Windows at
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https://github.com/mihtjel/nanovna-saver/releases/latest
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The downloadable executable runs directly, and requires no installation. For Windows 7, it does require Service Pack 1
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and [Microsoft VC++ Redistributable](https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads).
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The downloadable executable runs directly, and requires no installation. For
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Windows 7, it does require Service Pack 1 and [Microsoft VC++
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Redistributable](https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads).
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For most users, this is already installed.
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Windows versions older than Windows 7 are not known to work.
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It may be possible to run on those directly from the python code:
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Windows versions older than Windows 7 are not known to work. It may be
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possible to run on those directly from the python code:
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#### Installation and Use with pip
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@ -80,11 +92,14 @@ It may be possible to run on those directly from the python code:
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git clone https://github.com/mihtjel/nanovna-saver
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cd nanovna-saver
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4. Run the pip installation
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4. Update pip and run the pip installation
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python3.7 -m pip install -U pip
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python3.7 -m pip install .
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(You may need to install the additional packages python3-distutils, python3-setuptools and python3-wheel for this command to work on some distributions.)
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(You may need to install the additional packages python3-distutils,
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python3-setuptools and python3-wheel for this command to work on some
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distributions.)
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5. Once completed run with the following command
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@ -114,58 +129,76 @@ It may be possible to run on those directly from the python code:
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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. If the NanoVNA is
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connected before the application starts, it should be automatically detected. Otherwise, click "Rescan". Click
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"Connect to device" to connect.
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Connect your NanoVNA to a serial port, and enter this serial port in the serial
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port box. If the NanoVNA is connected before the application starts, it should
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be automatically detected. Otherwise, click "Rescan". Click "Connect to device"
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to connect.
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The app can collect multiple segments to get more accurate measurements. Enter the number of segments to be done in the
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"Segments" box. Each segment is 101 data points, and takes about 1.5 seconds to complete.
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The app can collect multiple segments to get more accurate measurements. Enter
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the number of segments to be done in the "Segments" box. Each segment is 101
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data points, and takes about 1.5 seconds to complete.
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Frequencies are entered in Hz, or suffixed with k or M. Scientific notation (6.5e6 for 6.5MHz) also works.
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Frequencies are entered in Hz, or suffixed with k or M. Scientific notation
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(6.5e6 for 6.5MHz) also works.
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Markers can be manually entered, or controlled using the mouse. For mouse control, select the active marker using the
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radio buttons, or hold "shift" while clicking to drag the nearest marker. The marker readout boxes show the actual
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frequency where values are measured. Marker readouts can be hidden using the "hide data" button when not needed.
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Markers can be manually entered, or controlled using the mouse. For mouse
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control, select the active marker using the radio buttons, or hold "shift"
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while clicking to drag the nearest marker. The marker readout boxes show the
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actual frequency where values are measured. Marker readouts can be hidden
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using the "hide data" button when not needed.
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Display settings are available under "Display setup". These allow changing the chart colours, the application font size
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and which graphs are displayed. The settings are saved between program starts.
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Display settings are available under "Display setup". These allow changing the
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chart colours, the application font size and which graphs are displayed. The
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settings are saved between program starts.
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### Calibration
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_Before using NanoVNA-Saver, please ensure that the device itself is in a reasonable calibration state._ A calibration
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of both ports across the entire frequency span, saved to save slot 0, is sufficient. If the NanoVNA is completely
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uncalibrated, its readings may be outside the range accepted by the application.
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_Before using NanoVNA-Saver, please ensure that the device itself is in a
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reasonable calibration state._ A calibration of both ports across the entire
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frequency span, saved to save slot 0, is sufficient. If the NanoVNA is
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completely uncalibrated, its readings may be outside the range accepted by the
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application.
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In-application calibration is available, either assuming ideal standards, or with relevant standard correction. To
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manually calibrate, sweep each standard in turn, and press the relevant button in the calibration window. For assisted
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calibration, press the "Calibration assistant" button. If desired, enter a note in the provided field describing the
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conditions under which the calibration was performed.
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In-application calibration is available, either assuming ideal standards, or
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with relevant standard correction. To manually calibrate, sweep each standard
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in turn, and press the relevant button in the calibration window. For assisted
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calibration, press the "Calibration assistant" button. If desired, enter a
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note in the provided field describing the conditions under which the
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calibration was performed.
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Calibration results may be saved and loaded using the provided buttons at the bottom of the window. Notes are saved
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and loaded along with the calibration data.
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Calibration results may be saved and loaded using the provided buttons at the
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bottom of the window. Notes are saved and loaded along with the calibration
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data.
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Users of known characterized calibration standard sets can enter the data for these, and save the sets.
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Users of known characterized calibration standard sets can enter the data for
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these, and save the sets.
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After pressing _Apply_, the calibration is immediately applied to the latest sweep data.
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After pressing _Apply_, the calibration is immediately applied to the latest
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sweep data.
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_Currently, load capacitance is unsupported_
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### TDR
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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. Open the "Time Domain Reflectometry" window, and
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select the correct cable type, or manually enter a propagation factor.
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To get accurate TDR measurements, calibrate the device, and attach the cable to
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be measured at the calibration plane - ie. at the same position where the
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calibration load would be attached. Open the "Time Domain Reflectometry"
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window, and select the correct cable type, or manually enter a propagation
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factor.
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### Frequency bands
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Open the "Display setup" window to configure the display of frequency bands. By clicking "show bands", predefined
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frequency bands will be shown on the frequency-based charts. Click manage bands to change which bands are shown, and
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the frequency limits of each. Bands default and reset to European amateur radio band frequencies.
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Open the "Display setup" window to configure the display of frequency bands. By
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clicking "show bands", predefined frequency bands will be shown on the
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frequency-based charts. Click manage bands to change which bands are shown,
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and the frequency limits of each. Bands default and reset to European amateur
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radio band frequencies.
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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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This software is licensed under version 3 of the GNU General Public License. It
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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
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changes back to the community.
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You can use it, commercially as well. You may make changes to the code, but I
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(and the license) ask that you give these changes back to the community.
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## Links
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* Ohan Smit wrote an introduction to using the application: [https://zs1sci.com/blog/nanovnasaver/]
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@ -178,15 +211,18 @@ Original application by Rune B. Broberg (5Q5R)
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Contributions and changes by Holger Müller, David Hunt and others.
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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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TDR inspiration shamelessly stolen from the work of Salil (VU2CWA) at
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https://nuclearrambo.com/wordpress/accurately-measuring-cable-length-with-nanovna/
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TDR cable types by Larry Goga.
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Bugfixes and Python installation work by Ohan Smit.
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Thanks to everyone who have tested, commented and inspired. Particular thanks go to the alpha testing crew who suffer
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the early instability of new versions.
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Thanks to everyone who have tested, commented and inspired. Particular thanks
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go to the alpha testing crew who suffer the early instability of new versions.
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This software is available free of charge. If you read all this way, and you *still* want to support it, you may donate to the developer using the button below:
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This software is available free of charge. If you read all this way, and you
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*still* want to support it, you may donate to the developer using the button
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below:
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[](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=T8KTGVDQF5K6E&item_name=NanoVNASaver+Development¤cy_code=EUR&source=url)
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