NanoVNA Network Analyzer

The NanoVNA is a portable Vector Network Analyzer (VNA) with a compact design, originally designed by edy555. This affordable yet powerful VNA, equipped with an LCD display, is powered by a 3.7V Li-ion battery and offers excellent performance within its price range.

Since its introduction in 2019, the NanoVNA has become the most popular VNA and antenna analyzer project among hobbyists. The firmware and hardware are maintained by edy555 on GitHub, where he continually pushes out updates, including extensions for harmonics. A well-made NanoVNA can achieve a dynamic range of 40dB at 900MHz.

Online community

Thanks to community collaboration, the improved NanoVNA-H rev3.4 (and later versions) and NanoVNA-H4 can achieve a dynamic range of 40dB up to 1.5GHz. With the excellent performance of the NanoVNA-H rev3.4, edy555 has increased the frequency limit to 2.7GHz in its 0.7.0 firmware. However, please note that above 1.5GHz there may be a significant noise floor and other uncertainties.

TDR functionality

Cho45 has added Time Domain Reflectometer (TDR) functionality to the NanoVNA, which allows for quick measurement of coaxial cable lengths and detection of cable faults by calculating impedance discontinuities.

Edy555 hosts its firmware and hardware documentation: https://github.com/ttrftech/NanoVNA

Optimized user experience

DiSlord's firmware has optimized the user experience, improved measurement speed and added some useful automated measurement functions.

Please note: Some websites and individuals claim to offer improved versions of NanoVNA and to be original developers of these products. These products are not related to NanoVNA and may violate the GPL agreement. The NanoVNA community does not support these products. Follow this link for the original schematics and firmware documentation.

Hugen has improved the original design of Edy555 with two extensions:

1. More Stable Battery Power: NanoVNA's SA612A mixer requires a stable 5V power supply. The original Edy555 design could not be stably powered by a 3.7V Li-ion battery and required an external USB power supply. Hugen's NanoVNA-H solved this with a 5V DC-DC boost converter, which allows stable operation with only a 3.7V Li-ion battery.

2. Extended frequency range: The original NanoVNA design operated from 50kHz to 300MHz. Hugen's design extended the measurement frequency range to 900MHz by utilizing harmonics from the internal frequency synthesizer.

Follow this link for the firmware and hardware of Hugen's redesigned NanoVNA. The latest versions are NanoVNA-H rev3.6 and NanoVNA-H4 rev4.3.

You can buy different versions of the pre-assembled NanoVNA at very affordable prices. For most, buying a pre-assembled NanoVNA-H is the most convenient option to get started right away. Or try making it yourself if you are into DIY or plan to customize it

Please note that some websites and individuals may claim that they offer upgraded versions of NanoVNA and that they are the original developers of these products. These products are not related to NanoVNA, and they may violate the GPL agreement. The NanoVNA community is unable to provide support for these products.