Welcome to the NanoVNA V2 product page. Looking for our full lineup of analyzers, comprehensive guides, or project history? Visit the Official NanoVNA Home Page.

NanoVNA V2

NanoVNA V2 (S-A-A-2) is a 4GHz vector network analyzer (VNA) capable of measuring antennas, filters, duplexers, and amplifiers. To bypass the hardware limitations of the legacy V1, original NanoVNA developers teamed up with RF engineers to form NanoRFE to build the V2 as a completely new, from-scratch architecture.

V2 Plus4 is the latest design which fixes the drift and linearity issues with older versions. It uses our new VNA-R architecture featuring temperature drift cancellation and reduced crosstalk, showing no visible drift in all indoor conditions.

Compared to legacy V1 NanoVNAs and market clones, V2 Plus4/Plus4 Pro do not use harmonics for measurements, improving performance significantly, achieving 90% less trace noise, and is the only low cost VNA to give you highly repeatable and reliable measurements comparable to professional instruments. The wide frequency range covers common cellular, Wi-Fi, and IoT bands, as well as HF, VHF, and UHF amateur radio bands.

NanoRFE devices are supported directly by the unified original development team, guaranteeing authentic hardware and dependable performance.

  • No noticeable drift, allowing calibrations to be kept for > 3 months (compared to < 30 minutes for other low cost VNAs)
  • Lowest measurement noise due to using RF rated parts and factory tuning (see example measurement). V2 Plus4 Pro increases signal to noise ratio further by an adjustable IF filter, improving performance at lower averaging.
  • Improved shielding and all-aluminum enclosure of the NanoVNA V2 Plus4 increases its dynamic range to >90dB, achieving similar results as professional VNAs, and allows measuring duplexers.
  • S parameters export, custom calibration kit parameters & advanced calibration methods (NanoVNA-QT software)
  • TDR / Time Domain measurements allow testing cable length and discontinuities.
  • Improved USB protocol allows full speed streaming of measured data to the PC.
  • Sold and maintained by original inventors, ensuring you receive authentic hardware, strict quality control, and continued software updates.

Update: V2 Plus4 versions now available for order: although the components shortage is worsening (original parts are harder to find as low quality counterfeits flood the market), we have finally secured enough ICs for another batch of NanoVNA V2 Plus4s, now available for order from our official store. Cost of components are still rising, so prices may need to be adjusted in the future. Thank you for your understanding.

Where to buy

NanoVNA

Official stores

Safe places to buy an original NanoVNA V2:

Looking to spot a fake?
Many sellers advertise higher specs using incorrect or lower quality parts, resulting in highly noisy trace measurements. For a master list of authorized sellers, bad sellers, and a guide on spotting counterfeit devices, please visit our Authentic NanoVNA vs. Clone Guide.

How accurate is it?

The NanoVNA V2 Plus4 has been independently tested by users and radio amateurs to match the performance and smith charts of professional, high-end instruments like the Keysight FieldFox and HP-8753E.

View the full Professional VNA Comparisons & Charts »

Here are some sample measurements we made of a cascaded SAW filter and a power amplifier using a NanoVNA V2 Plus4 (click the images to view them at full size):

NanoVNA V2 Plus4 dynamic range when measuring SAW filter NanoVNA V2 Plus4 power amplifier measurement

Note that some averaging is needed to get the NanoVNA V2 Plus4 to near 100dB dynamic range.

Typical noise floor (V2 Plus4 Pro, calibrated, IFBW=0.8kHz, AVG=20)

Trace noise Noise floor

How to use and calibrate NanoVNA V2

Looking for guides on how to operate your device? We have moved our tutorials to dedicated pages to make them easier to find:

Battery Installation & Information

The V2 Plus4 accepts a standard 18650 flat-top unprotected 3.6V lithium-ion battery. Operation without a battery (using only USB power) is also fully supported. See here for how to insert the battery.

The device includes on-board battery protection and charging circuitry. Important Note: After initially inserting a battery, you must plug in USB power at least once to activate the battery management IC before the device will turn on.

Documentation

User manuals

User Manual for all NanoVNA V2 versions

V2 Plus4 User manual by NC4BR

Menu maps

Menu Map for all NanoVNA V2 versions

V2 Plus4 Menu Map by NC4BR

Software & Firmware Updates

We provide comprehensive software support for Windows, Linux, and Mac, as well as regular firmware updates to ensure your device functions flawlessly.

Download NanoVNA Software & Drivers »

Download V2 Firmware Updates »

Specifications

The following are the specifications of NanoVNA devices manufactured by HCXQS/NanoRFE.

Parameter

Board version

Specification

Conditions

Frequency range

V2_2, V2 Plus

50kHz - 3GHz

-

V2 Plus4,
V2 Plus4 Pro

50kHz – 4.4GHz

-

Frequency resolution

All

0.01MHz

-

System dynamic range
(calibrated)

V2_2, V2 Plus

60dB

V2 Plus4

90dB

AVG=20, 1GHz

80dB

AVG=5, 3GHz

V2 Plus4 Pro

96dB

BW=1.6kHz, AVG=20, 1GHz

90dB

BW=1.6kHz, AVG=5, 1GHz

80dB

BW=4.7kHz, AVG=5, 3GHz

S11 noise floor
(calibrated)

All

-50dB

f < 1.5GHz

-40dB

f < 3GHz

Sweep points

V2 Plus4

1 – 1024 points (with NanoVNA-QT software). More points (up to 65535) are possible depending on the performance of your PC.

-

Sweep time

V2 Plus4

0.25s

Default sweep settings

V2 Plus4 Pro

0.16s

Default sweep settings
BW=10kHz

Power supply

All

USB, 4.6V – 5.5V

-

Supply current

All

500mA typ

No charging

Battery current, charging

All

1.2A typ

-

Battery capacity

V2 Plus4,
V2 Plus4 Pro

3200mAh

-

Operation ambient temperature

All

0℃ - 45℃ *

* by design, not tested in production

Ambient temperature during battery charging

All

10℃ - 45℃

-

Note: NanoVNA V2 Plus4 Pro now allows measuring crystals by an adjustable bandwidth setting. All other hardware versions can not measure crystals because of the rapid switching of the test signal.


Schematics and PCB layout

The schematics and PCB layout files of the V2.2 version are available here:

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

The NanoVNA V2 design is licensed under CC-BY-NC-SA and commercial use without specific permission is forbidden. You need to obtain specific written permission every 3 months to sell hardware using this design.

V2.3 and V2.4 designs are confidential and proprietary, and reverse engineering is forbidden.