Other recommended projects

Here are some other excellent radio projects that can be a useful addition to NanoVNA.

They are separate projects from NanoVNA and you can go to the relevant websites for details.

tinySA

The tinySA is a small spectrum analyzer or signal generator, primarily intended for 0.1MHz to 350MHz input/output, but also offers high input/outputs up to 960MHz with limited performance.

tinySA has the same size as NanoVNA and is priced close to NanoVNA. Unlike previous low-cost spectrum analyzers, tinySA implements for the first time a similar architecture to that of professional heterodyne spectrum analyzers in a low-cost spectrum analyzer.
You can click here for the technical description of tinySA.

Note that tinySA is not open source hardware, if you want to get a tinySA, you need to buy it from a store authorized by the developer.

LibreVNA

LibreVNA is a newly designed USB-based full 2-port vector network analyzer up to 6 GHz. It can provide up to 100dB of effective dynamics within 3GHz and has a measurement speed comparable to professional VNAs. For measurements requiring fast dual-port measurements, or those requiring high dynamic range, LibreVNA is a near replacement for professional VNAs.

LibreVNA is open source hardware, so you can try to make it yourself.
The complete production file is available here.

A simpler way is to buy the finished product already assembled.
You can buy LibreVNA at the following stores
AliExpress Zeenko Store
R&L Electronics in the United States
SHY store on Amazon
Eleshop B.V. in EU countries

LiteVNA

LiteVNA is a portable vector network analyzer (VNA) as small as the NanoVNA and capable of meeting the ultra-wide measurement range of 50 kHz to 6.3 GHz.
To minimize power consumption and size, the LiteVNA uses only one mixer, with multiple internal RF switches for S11 and S21 measurements, and IFFT calculations for TDR and DTF measurements.
Designed with the community's input in mind, the LiteVNA now brings faster scanning speeds and more scan points in addition to a wider measurement range. Combined with an easy-to-use interface consistent with the NanoVNA, the LiteVNA can now be easily used as a field test tool.
LiteVNA includes a MicroSD slot, so you can save field test data or screens to a MicroSD card at any time. With a measurement range of up to 6.3GHz, the LiteVNA is capable of meeting common amateur radio and IoT applications, as well as emerging 5GHz testing, enabling the application of the latest 5.8GHz wifi and 5.8GHz image transmission.