About NanoVNA V2

NanoVNA V2 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.

groups.io/g/NanoVNAV2 -- Users group and discussion forum

Where to buy

HCXQS is the official manufacturer of the S-A-A-2 (NanoVNA V2), and is the only manufacturer that fund the development team.

As of November 2020 most V2 devices sold on Aliexpress other than the official store below are clones, many of which perform badly, and some users have reported firmware incompatibility. See FAQ | How to avoid a bad clone.

Official stores:

Official store on Aliexpress

Official store on Tindie

Official store on Taobao (NanoVNA V2 唯一官方淘宝店)

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.

User groups / Forums

Discussion forum
https://groups.io/g/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	-
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	350mA typ, 400mA 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℃	-

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:

• Reflection coefficient: S11
• Transmission coefficient: S21

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

• 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 Manual

Menu Map

Firmware downloads

Use this table to select and download the correct firmware variant for your device:

Hardware versions

Software

NanoVNA-QT (PC software) releases:

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

NanoVNA Saver:

https://github.com/zarath/nanovna-saver

Schematics and PCB layout

The schematics and PCB layout files are available here:

https://github.com/nanovna/NanoVNA-V2

Permission is granted to use the design commercially and non-commercially without royalties. However, note that it is in your interest and everyone's interest to abide by basic business ethics.