Added 3 thin coax-types to the TDR section. (Thanks, Rudi!)

Updated the README with some instructions for use.
pull/6/head
Rune B. Broberg 2019-09-01 17:32:45 +02:00
rodzic 244b7dd4a1
commit 0e4410d71f
2 zmienionych plików z 17 dodań i 0 usunięć

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@ -188,6 +188,11 @@ class NanoVNASaver(QtWidgets.QWidget):
self.tdr_velocity_dropdown.addItem("Foam or Cellular PE (0.78)", 0.78)
self.tdr_velocity_dropdown.addItem("Semi-solid PE (SSPE) (0.84)", 0.84)
self.tdr_velocity_dropdown.addItem("Air (Helical spacers) (0.94)", 0.94)
self.tdr_velocity_dropdown.insertSeparator(7)
self.tdr_velocity_dropdown.addItem("RG174 (0.66)", 0.66)
self.tdr_velocity_dropdown.addItem("RG316 (0.69)", 0.69)
self.tdr_velocity_dropdown.addItem("RG402 (0.695)", 0.695)
self.tdr_velocity_dropdown.insertSeparator(11)
self.tdr_velocity_dropdown.addItem("Custom", -1)
self.tdr_velocity_dropdown.setCurrentIndex(1) # Default to PE (0.66)

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@ -43,6 +43,18 @@ In order to run this app in Linux environment, you'll need the following package
python3 nanovna-saver.py
```
### Using the software
Connect your NanoVNA to a serial port, and enter this serial port in the serial port box. Click "Open serial" to connect.
The app can collect multiple sweeps to get more accurate measurements. Enter the number of sweeps to be done in the
sweep count box. Each sweep is 101 data points, and takes about 1.5 seconds to complete.
Marker frequencies are entered in Hz. Press enter after typing the frequency for it to take effect.
To get accurate TDR measurements, calibrate the device, and attach the cable to be measured at the calibration plane -
ie. at the same position where the calibration load would be attached.
### License
This software is licensed under version 3 of the GNU General Public License. It comes with NO WARRANTY.