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 earliest V1 design from edy555. Compared to earlier NanoVNA versions, V2 does not use harmonics for measurements and achieves higher dynamic range.

Users group and discussion forum

groups.io/g/NanoVNAV2

This is the only official users group. Be careful and note the URL is NanoVNAV2.

NanoVNA V2

Where to buy

Only HCXQS and NanoRFE support the original developers.

Beware of cheap underperforming clones: as of July 2021 all non-Plus/Plus4 hardware on the market are clones (we have stopped producing V2.2 versions since October 2020), which use salvaged parts and perform badly, and users have reported software/firmware incompatibility. See official stores below and look for Plus/Plus4 versions only 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:


The following stores are selling clones.

Because of disputes about anticompetitive behavior, the original developers officially do not allow Hugen/Zeenko to make and sell any of our designs. We have issued a public statement in October 2020: https://groups.io/g/nanovna-users/message/17875
The designs have been under a non-commercial license since 2021, so anything still being produced are illegal clones and will have no support.


Noise comparison (uncalibrated)

User groups / Forums

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

This is the only official users group. Be careful and note the URL is NanoVNAV2.

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

Discord
https://discord.gg/mF8AZrY


Specifications

The specifications below apply only to devices manufactured by HCXQS or NanoRFE.
Beware of cheap clones that use salvaged or reject parts which do not meet 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
IFBW=40Hz (20xAVG)

80dB

f < 3GHz
IFBW=160Hz (5xAVG)

70dB

f < 3GHz
IFBW=800Hz (1xAVG)

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.


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 need to obtain specific permission every 3 months to sell hardware using this design. It is in your interest and everyone's interest to abide by basic business ethics.