100kHz to 6GHz 2 port USB based VNA
100kHz to 6GHz VNA
This is the improved version of my first attempt at a VNA.
Please also take a look at the FAQ.
If you notice bugs or have ideas for improvements, please create an issue for that.
For general questions or discussions, the LibreVNA group is probably the best place.
Some specifications are available but this project is still under development and the specifications might change.
There are also some initial example measurements.
The PCB is really only the RF frontend with some processing power. Everything else is handled in the PC application once the data is transferred via USB. You can try out the application without the PCB (obviously no measurements are possible, but you can import provided example measurements and get an idea about what it can and can't do).