About NanoVNA V2

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NanoVNA V2 (S-A-A-2) is a low cost 3GHz T/R vector network analyzer developed by HCXQS in collaboration with OwOComm. The V2 hardware is a new from-scratch design and is not based on the original NanoVNA by edy555. Compared to the original NanoVNA, V2 does not use harmonics for measurements and achieves higher dynamic range.

In W, the production of impurities, such as Re, Ta, and Os, is fairly significant, for from a few thousand to tens of thousands of atomic parts per million (appm) over a typical DEMO-like first-wall 5-year neutron exposure. Over such a timescale, this leads to W falling from 100 atomic% initially, to less than 94 atom%. The Linux/Windows/Mac OS X binary packages contain both the source code of nanopb, and a binary version of all the dependencies of the code generator. They are the recommended option for most users. Which version to download? All versions listed here are regarded as stable. Just unpack the archive and start Nanovoid. (no installation required, Mac OS 10.6 Snow Leopard or better).

Warning: an unofficial NanoVNA V2 group on groups.io was used to promote clones. Be careful and note the URL of the official group is NanoVNAV2.

Where to buy

Only HCXQS and NanoRFE support the original developers of the S-A-A-2.

As of April 2021 most Aliexpress sellers other than the official store below are selling clones, many of which perform badly, and some users have reported firmware incompatibility. See official stores below to ensure you get a supported version. See FAQ How to avoid a bad clone.

All board revisions before Plus4 are not compatible with a metal enclosure, which worsens dynamic range by 10dB at 3GHz. All original NanoVNA V2 devices before Plus4 use an acrylic or 3D printed enclosure, and only Plus4 has improved shielding that achieves high dynamic range with a metal enclosure.

Official stores:

Authorized distributors:

The following stores are known to sell clones:

• R&L electronics

Note that OwOComm does not manufacture V2 devices and does not provide direct technical support. Please use the below support forum or click 'Contact Seller' on the Tindie or Aliexpress page.

Because of disputes about anticompetitive behavior, the original developers of NanoVNA V2 officially do not allow Hugen to make and sell devices using our design and have issued a public statement in October 2020: https://groups.io/g/nanovna-users/message/17875
If you find his V2 devices still for sale, they are being sold against the wishes of the original developers. Unfortunately we are up against someone with much more resources and capital than us, and Hugen's actions made it impossible for us to open source any designs for now. For all developers who are looking for a partner to produce and market your design, we recommend looking for a more trustworthy partner such as Seeed Studio, Elecrow, or Makerfabs, just to name a few.
Thank you for your understanding.

User groups / Forums

Discussion forum
https://groups.io/g/NanoVNAV2

Facebook
https://www.facebook.com/nanovnav2/

Discord
https://discord.gg/mF8AZrY

Specifications

Note: All V2 versions switch on and off the test signal rapidly and can not measure crystals or be used as a signal generator. See FAQ. For measuring crystals we recommend using an original NanoVNA by edy555.

Measurement comparisons

Basic usage

VNA basics

A VNA (Vector Network Analyzer) measures the frequency dependent reflected and transmitted power of a high frequency network (RF Network).

The NanoVNA V2 measures the following:

• Reflection coefficient: S11
• Transmission coefficient: S21

• Return loss
• Insertion loss
• Complex impedance
• Resistance
• Reactance
• SWR

Required components

To use the NanoVNA V2 for one port measurements (e.g. antenna impedance), you will need the following:

• NanoVNA V2 main unit
• SMA cable, male-male
• Calibration standards: Short, Open, and Load

Performing measurements

The basic operation and menu structure of the NanoVNA V2 is very similar to the original NanoVNA.

• Configure the measurement frequency range:

  Select STIMULUS > START and STIMULUS > STOP.

• Calibrate:
  1. Enter the CAL menu and connect a SMA male-male cable to port 1 of the VNA.
  2. Connect the OPEN standard to the cable end and select 'OPEN'. Wait for menu highlight.
  3. Connect the SHORT standard to the cable end and select 'SHORT'. Wait for menu highlight.
  4. Connect the LOAD standard to the cable end and select 'LOAD'. Wait for menu highlight.
  5. Select 'APPLY'. Calibration should now be active and you can start performing measurements.

Documentation

User manuals

User Manual for all V2 versions

V2 Plus4 User manual by NC4BR

Menu maps

Menu Map for all V2 versions

V2 Plus4 Menu Map by NC4BR

Firmware downloads

Nanovoid Mac Os Catalina

For firmware releases go to the Hardware versions page which lists the latest stable firmware builds for each hardware variant.

There are also experimental firmware releases at downloads.

Firmware sources are at https://github.com/nanovna-v2/NanoVNA-V2-firmware

Software

There are two PC programs compatible with the S-A-A-2. NanoVNA-QT is the native V2 software and allows adjustable sweep points and firmware updating. NanoVNA-Saver was originally developed for the V1 NanoVNA but now also has support for V2.

NanoVNA-QT:

NanoVNA Saver:

Nanovoid Mac Os X

Schematics and PCB layout

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The schematics and PCB layout files are available here:

Nanovoid Mac Os Update

The design is licensed under CC-BY-NC-SA. You can use the V2_2 design commercially only if COGS multiplier is kept at 3.0 or above, otherwise you need to obtain specific permission every 3 months. It is in your interest and everyone's interest to abide by basic business ethics.