In one of my lasts post I've shown some data about the generator output level of the miniVNAtiny.

Now I've received from S. Petrovich a much more detailled analysis of the output power level for a miniVNAtiny.

Version 3.1.15 of vna/J is released.

• The application JAR can be downloaded from here as usual.
• The following updates are included in this version:
  • Generator is turned off after scan
  • Updated driver for MetroVNA

Gopan VU2XTO has done an amazing hack. He packaged an F4GOH VNA together with an RaspberryPI 3, an LCD touch display, a touch pad and a small OLED display in a little box and - voila his standalone VNA is ready to go.

Here a short description from Gopan how he did this - for any questionx regarding his solution, please contact him directly.

Some months ago Andrew Rich, VK4TEC and Geoff Robinson, VK4KJJ provided me a chart where they measured the generator output level over frequency:

They used a ROHDE & SCHWARZ NRP2 with an NRP-Z81 power sensor.

Version 3.1.13 of vna/J is released.

• The application JAR can be downloaded from here as usual.
• The following updates are included in this version:
  • Added driver for F4GOH VNArduino
  • Updated driver for miniVNApro+extender

The XMAs-Edition 3.1.13 of vna/J is released.

The application JAR can be downloaded from here as usual. The following updates are included in this version:

• Fixed problem with some scan ranges and windows sizes. Thanks to Angel.
• Bug fixed in driver for minIVNApro with extender - thanks to Ian ZL2IH and Karl-Heinz DL9GAB.
• Option added to driver selection dialog to display all available serial ports on system.

The new version 3.1.12 of vna/J is released.

The application JAR can be downloaded from here as usual. The following updates are included in this version:

• Option added to driver selection dialog to display all available serial ports on system
• List of cable types in cable length dialog is loaded from cables.csv in vna/J config directory. Default file is created automatically.
• Frequency ranges for bandmap in main diagram is loaded from bandmap.csv in vna/J config directory. Default file is created automatically.

I've updated the driver guide for the miniVNA^tiny reflecting the removed filter-mode.

Thanks to Andrew Rich, VK4TEC and Geoff Robinson, VK4KJJ we now have a precise power-over-frequency chart in generator mode.

You can find the latest version here.

The new version 3.1.11 of vna/J is released.

The application JAR can be downloaded from here as usual. The following updates are included in this version:

• Driver fixed for miniVNA/metroVNA
• Bug in vna/J update feature fixed
• Error message fixed on invalid export directory

The new version 3.1.10 of vna/J is released.

The application JAR can be downloaded from here as usual. The following updates are included in this version:Driver fixed for miniVNApro + Extender

• Filter code for miniVNAtiny removed
• Creation of calibration block changed
• Number of calibration steps limited between 3.000 and 30.000
• Thanks to some of my Chinese friends for decompiling the code. Keep away of obscure download sources