1. Introduction
The NanoVNA-F V3 is a portable vector network analyzer designed for measuring and analyzing RF circuits. This 2023 improved and upgraded version of the NanoVNA series offers enhanced performance and user experience. It is an essential tool for electronics enthusiasts, engineers, and students working with radio frequency applications.
The device features a 4.3-inch touch screen, providing a larger display area and a more intuitive interface. It supports a wide frequency range from 1MHz to 6GHz, ensuring high accuracy and stability for various measurements.
The NanoVNA-F V3 can measure component parameters such as resistance, capacitance, and inductance, as well as RF characteristics like S-parameters, attenuation, and Voltage Standing Wave Ratio (VSWR).
For advanced analysis and data management, the device can be connected to a computer via a USB port, allowing for data transfer, software control, image display, data analysis, and export.
2. Package Contents
Upon opening your NanoVNA-F V3 package, please verify that all the following items are included:
- NanoVNA-F V3 Unit ×1
- SMA OPEN/SHORT/LOAD calibration kit ×1
- SMA-KK adapter ×1
- SMA-JJ adapter ×1
- SMA-JKW adapter ×1
- 20cm SMA-JJ RG405 coaxial cable ×2
- USB Type-C cable ×1

3. Specifications
The NanoVNA-F V3 offers the following technical specifications:
| Characteristic | Value |
|---|---|
| Frequency Range | 1MHz-6GHz |
| RF Output Power | -10dBm (Max) |
| RF Interface | 0dBm (Max), DC=5V |
| Frequency Accuracy | ±1ppm |
| Stepped Frequency | 10kHz (Min) |
| S21 Dynamic Range | 65dB (3GHz), 60dB (6GHz) |
| S11 Dynamic Range | 50dB (3GHz), 40dB (6GHz) |
| Screen | 4.3" IPS TFT (800x480) |
| USB-A Power out | 5V/1A |
| Charge/Data Port | USB Type-C |
| Li-Battery | 3.7V/4500mAh |
| Battery Life | 5 hours |
| Calibration points | 801 |
| Scan Point | 101 ~ 801 |
| Traces | 4 |
| Markers | 4 |
| Calibration Result Storage | 12 |
| Sweep Speed | 200 pts/s |


4. Device Overview
Familiarize yourself with the physical components and ports of your NanoVNA-F V3:

- PORT 1 (S11) & PORT 2 (S21): SMA connectors for connecting to the Device Under Test (DUT). These are stable and durable.
- TYPE-C Port: Used for charging the device and for data transfer to a computer.
- ON/OFF Switch: Powers the device on or off.
- 5V/1A Output: A USB-A port providing 5V/1A power output.
- Indicator Light: Provides status information, such as charging status.
- Physical Buttons: For navigation and control within the device's menu.

5. Setup
5.1 Initial Charging
Before first use, ensure the NanoVNA-F V3 is fully charged. Connect the provided USB Type-C cable to the device's Type-C port and a 5V/1A USB charger. The LED charging indicator will illuminate during charging.

5.2 Powering On/Off
To power on the device, slide the ON/OFF switch to the 'ON' position. To power off, slide it to the 'OFF' position.
5.3 Calibration
For accurate measurements, it is crucial to perform a calibration using the included SMA OPEN/SHORT/LOAD calibration kit. Refer to the on-screen instructions or the detailed software manual for the calibration procedure. The device supports 801 calibration points and can store up to 12 calibration results.
6. Operation
6.1 Basic Measurements
The NanoVNA-F V3 covers MF/LF/HF/VHF/UHF bands, suitable for testing antennas, filters, amplifiers, attenuators, cables, duplexers, and couplers. Connect your Device Under Test (DUT) to PORT 1 (S11) for reflection measurements or between PORT 1 and PORT 2 (S21) for transmission measurements.


6.2 Touch Screen Interface
The 4.3-inch IPS LCD touch screen allows for intuitive control and data visualization. Use the included stylus or your finger to navigate menus, adjust parameters, and view measurement results. The screen is designed for clear visibility even outdoors.


6.3 Frequency Range and Display
The device can display various plots, including Smith charts, for analyzing RF characteristics across its 1MHz-6GHz frequency range.

6.4 Time Domain Reflector (TDR)
Utilize the TDR function for cable length measurement and cable break point checking. This feature helps in diagnosing issues in coaxial cables and transmission lines.

6.5 Desktop Software
Connect the NanoVNA-F V3 to your computer via the USB Type-C port to use the feature-rich desktop software. This software allows for advanced sweep control, detailed data analysis, and various plot visualizations beyond what is available on the device's screen.

6.6 RF Demo Kit Usage
The included RF Demo Kit can be used to practice measurements and understand various RF components. Connect the NanoVNA-F V3 to the demo board using the provided coaxial cables and adapters to measure filters, attenuators, and other circuits.

7. Maintenance
7.1 General Care
Keep the device clean and free from dust and moisture. Use a soft, dry cloth for cleaning. Avoid exposing the device to extreme temperatures or direct sunlight.
7.2 Battery Care
The NanoVNA-F V3 is equipped with a built-in 4500mAh Li-Battery, providing approximately 5 hours of working time. To prolong battery life, avoid fully discharging the battery frequently and store the device with a partial charge if not used for extended periods.


8. Troubleshooting
- Device not powering on: Ensure the battery is charged. Connect the device to a 5V/1A charger using the USB Type-C cable.
- Inaccurate measurements: Perform a full calibration using the SMA OPEN/SHORT/LOAD kit. Check cable connections for looseness or damage.
- Screen unresponsive: Try restarting the device. If the issue persists, ensure the screen is clean and free from debris.
- Cannot connect to PC: Ensure the USB Type-C cable is securely connected to both the device and the computer. Install any necessary drivers for the NanoVNA-F V3 on your computer.
9. User Tips
- Impedance Matching: The NanoVNA-F V3 operates with a standard 50-ohm impedance, which is crucial for accurate RF measurements. Ensure your DUT and cables are also 50-ohm for best results.
- Data Transfer: You can transfer measurement data to a PC via the USB Type-C port for more in-depth analysis and storage using the dedicated desktop software.
- Firmware Updates: Regularly check for firmware updates from the manufacturer's official channels to ensure optimal performance and access to new features.
- Protective Case: Consider using a protective case to safeguard the device during transport and field use, especially given its portable nature.

10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the manufacturer's official website. Keep your purchase receipt as proof of purchase.