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About NanoVNA V2

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.

Users group and discussion forum

groups.io/g/NanoVNAV2

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.

NanoVNA V2

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:

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

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.

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

Discord
https://discord.gg/mF8AZrY


Specifications

Parameter

Board version

Specification

Conditions

Frequency range

V2_2, V2 Plus

50kHz - 3GHz

-

V2 Plus4

50kHz – 4.4GHz

-

Frequency resolution

All

10kHz

-

System dynamic range
(calibrated)

V2_2, V2 Plus

70dB

f < 1.5GHz

60dB

f < 3GHz

V2 Plus4

90dB

f < 1GHz
20x averaging

80dB

f < 3GHz
5x averaging

70dB

f < 3GHz
No averaging

S11 noise floor
(calibrated)

All

-50dB

f < 1.5GHz

-40dB

f < 3GHz

Sweep rate

V2_2

100 points/s

f >= 140MHz

80 points/s

f < 140MHz

V2 Plus

200 points/s

f >= 140MHz

100 points/s

f < 140MHz

V2 Plus4

400 points/s

f >= 140MHz

200 points/s

f < 140MHz

Sweep points (on device)

All

10 – 201 points, adjustable

-

Sweep points (USB)

All

1 – 1024 points, adjustable

-

Power supply

All

USB, 4.6V – 5.5V

-

Supply current

All

400mA typ, 500mA max

No charging

Battery current, charging

All

1.2A typ

-

Battery capacity

V2_2

V2 Plus

User defined

-

V2 Plus4

3200mAh

-

Operation ambient temperature

All

0℃ - 45℃ *

* by design, not tested in production

Ambient temperature during battery charging

All

10℃ - 45℃

-

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

Accuracy comparison between NanoVNA V2 and HP-8753E by DD1US

Basic usage

NanoVNA V2 Video Tutorials

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:

The following items that can be calculated from these can be displayed:

Required components

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

Performing measurements

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

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

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:

https://github.com/nanovna/NanoVNA-QT/releases

NanoVNA Saver:

https://github.com/NanoVNA-Saver/nanovna-saver

Schematics and PCB layout

The schematics and PCB layout files are available here:

https://github.com/nanovna-v2/NanoVNA2

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.