How to buy an original Seesii NanoVNA-H4 Vector Network Analyzer in India?

All Seesii NanoVNA-H4 units are sourced directly from authorized US retailers and brand partners, ensuring 100% authenticity. They are factory-sealed and imported per order, with all customs duties and GST pre-paid. Your order is shipped via ExpressBox with tracking, providing a secure and transparent purchase experience for this advanced RF tool.

What is the difference between a single-axis and a triaxial (3-axis) EMF meter?

A single-axis meter measures the field strength along one direction, so you must rotate it to find the peak reading. A triaxial meter reads all three directions at once and reports a combined value, making it faster and more repeatable for site surveys. The Seesii NanoVNA-H4 is a vector network analyzer, not an EMF meter, and measures RF parameters, not general EMF.

Can this meter measure both power-line EMF and Wi-Fi/mobile signals?

The Seesii NanoVNA-H4 is a vector network analyzer designed for RF measurements like SWR and S-parameters up to 1.5GHz, not a general EMF meter for power lines or Wi-Fi signals. It is optimized for antenna testing and performance analysis, not for detecting ambient electromagnetic fields.

Is the Seesii NanoVNA-H4 suitable for amateur radio operators in India?

Yes, the Seesii NanoVNA-H4 is highly suitable for amateur radio operators in India. Its 1.5GHz range, SWR measurement, and PC connectivity are excellent for testing and optimizing antennas for ham radio frequencies. Reviewers praise its performance for antenna testing and value for money.

What accessories are included with the NanoVNA-H4?

The package includes the NanoVNA-H4 unit with a 1950mAh battery, a USB Type-C cable, two 15cm SMA male to male RG316 RF cables, SMA male calibration kits (OPEN, SHORT, LOAD), and a touchscreen pen. This comprehensive kit allows for immediate setup and calibration.

Can I save test data from the NanoVNA-H4?

Yes, the NanoVNA-H4 features a built-in MicroSD card port (up to 32GB, card not included) to save field test data and screenshots. You can also connect it to a PC using the NanoVNASaver software to export data in Touchstone (.snp) files for further analysis and simulation.

What is the measurement accuracy of the NanoVNA-H4?

The NanoVNA-H4 offers excellent dynamic range: better than 70dB from 50KHz-300MHz, better than 60dB from 300MHz-900MHz, and better than 40dB from 900MHz-1.5GHz. This ensures precise measurements for antenna performance and SWR analysis.

Seesii NanoVNA-H4 Vector Network Analyzer 1.5GHz | Buy Antenna Analyzer Online India

Name: Seesii NanoVNA-H4 Vector Network Analyzer 1.5GHz | 4-Inch Touchscreen HF VHF UHF SWR Meter
Brand: Seesii
SKU: dbg0891
Price: 12844.00 INR
Availability: InStock

About this item

The Seesii NanoVNA-H4 Vector Network Analyzer is an upgraded, portable device for precise antenna testing and SWR measurement, covering frequencies from 9KHz to 1.5GHz. Featuring a 4.0-inch LCD touchscreen and developed by Hugen, it provides excellent dynamic range and supports saving test data via a MicroSD card port. This analyzer is a smart tool for electronics engineers, amateur radio operators, and DIY enthusiasts looking for reliable performance analysis.

With an improved frequency algorithm, the NanoVNA-H4 offers superior dynamics across its measurement range. The 50K-300MHz band provides over 70dB, 300M-900MHz over 60dB, and 900M-1.5GHz over 40dB. It connects to PC software (NanoVNASaver) for data export to Touchstone (.snp) files, enabling detailed radio design and simulation. The TX/RX function allows measurement of complete S11/S21 parameters, making it versatile for troubleshooting and performance optimization.

This analyzer comes with a 1950mAh battery, USB Type-C cable, SMA RF cables, and calibration kits (OPEN, SHORT, LOAD). It's designed for ease of use, making it a valuable addition to any ham station or electronics workbench. All customs duties and GST are included in the price, with tracked delivery via ExpressBox to your Indian pincode.

Key Features

UPGRADED NANOVNA ANALYZER: SeeSii Nanovna-h4 Vector Network Analyzer is developed by Hugen. With the latest 4.4 version,9KHz-1.5GHz measure range,4.0 inch LCD touchscreen, mini and portable design. This Antenna Analyzer is provides outstanding vector network measurement capabilities and perfect for evaluating antenna resonance and SWR. It is a very handy & smart analyzer for electronics engineers, amateur radio operators, or radio diy amateurs
BUILT-IN MICRO-SD PORT & TIME DISPLAY: The latest antenna analyzer with a MicroSD card port, so you can save field test data or screens to a MicroSD card at any time, supporting up to 32GB memory card. (Not included in the package).In addition, different from the old version of NanoVNAs, the date and time can be customized, which is convenient for you to further record and save data. The default firmware main function is used for antenna performance measurement
IMPROVED FREQUENCY ALGORITHM: The Vector Network Analyzer can use the old harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The 50K-300MHz frequency range of the si5351 direct output provides better than 70dB of dynamics, The extended 300M-900MHz band provides better than 60dB of dynamics, and the 900M-1.5GHz band is better than 40dB of dynamics. Great for troubleshooting antennas and improving performance
PC CONNECTION & TX/RX FUNCTION: The VNA analyzer uses PC software NanoVNASaver, it can connect to a NanoVNA and extracts the data for display on a computer for saving to Touchstone files. We can export Touchstone (snp) files for various radio design and simulation software through PC software. In addition, the default firmware is mainly used for antenna performance measurement. The TX/RX method can measure the complete S11/S21 parameters (need to manually replace the transceiver port wiring)
Abundant Accessories: Equipped with 1x NanoVNA-H4(with 1950mA-h battery), 1x USB Type-C cable, 2 x 15cm SMA male to male RG316 RF cable, 1x SMA male calibration kit - OPEN,1x SMA male calibration kit - SHORT,1 x SMA male calibration kit - LOAD,1 x Touchscreen pen. It's very useful as an antenna analyzer for your ham station, easy to set without fancy calibration

Why choose this product

Precision RF Analysis for Ham Radio

The Seesii NanoVNA-H4 delivers accurate SWR, S-parameter, and phase measurements up to 1.5GHz, crucial for optimizing amateur radio antennas. Its advanced algorithms and PC connectivity allow for detailed performance tuning, ensuring your setup operates at peak efficiency. This imported unit provides the reliability and specifications sought by serious radio enthusiasts.

Ideal for Electronics Engineers

This analyzer is perfect for engineers needing to test antenna resonance, cable loss, and S-parameters in electronics projects. Its portable design and touchscreen interface simplify field diagnostics. While it offers advanced capabilities, it's best suited for those familiar with RF principles; users needing simple signal detection might find other tools more appropriate.

How to use

Ensure the NanoVNA-H4 is charged using the USB Type-C cable. Press the power button to turn on the device and allow it to boot up to the main interface. — Charge and Power On
Connect the antenna or cable to be tested using the provided SMA RF cables. Perform calibration using the included OPEN, SHORT, and LOAD kits for accurate measurements. — Connect and Calibrate
Navigate the touchscreen menu to select the desired measurement mode, such as SWR, S-parameters (S11/S21), or Smith Chart, and set the frequency range (e.g., 9KHz-1.5GHz). — Select Measurement Mode
Observe the real-time measurements on the screen. Use the MicroSD card slot to save test data or screens, or connect to a PC via NanoVNASaver for advanced analysis and file export. — Analyze and Save Data

Example scenarios

Typical situations where Seesii NanoVNA-H4 Vector Network Analyzer 1.5GHz | 4-Inch Touchscreen HF VHF UHF SWR Meter helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

An amateur radio operator in Delhi needs to tune their HF antenna for optimal performance on specific bands.

How this product helps

The Seesii NanoVNA-H4's 1.5GHz range and SWR measurement capabilities allow precise tuning. Using the touchscreen and PC software, they can analyze antenna resonance and path loss, ensuring clear communication even with local interference.

Scenario 2

Illustrative example

Where it helps

An electronics hobbyist in Bangalore is designing a custom RF circuit and needs to verify component impedance and S-parameters.

How this product helps

This analyzer's ability to measure S11/S21 parameters and display Smith Charts helps the hobbyist validate their circuit design. The MicroSD card slot allows saving test results for later review and refinement of their RF projects.

Specifications

Composition

Main Processor	Based on Si5351
Dynamic Range (50K-300MHz)	> 70dB
Dynamic Range (300M-900MHz)	> 60dB
Dynamic Range (900M-1.5GHz)	> 40dB

Usage

Primary Use	Antenna performance measurement, SWR, S-parameters, phase, delay, Smith Chart analysis
Target Users	Electronics engineers, amateur radio operators, radio DIY enthusiasts
Power Source	Built-in 1950mAh rechargeable battery
Battery Life	Up to 5 hours (typical use)
Cost per use	Unit at ₹12,844 — ₹12,844 per unit
Shelf life after opening	12 months (typical for electronic test equipment)
Reapplication math	N/A (Durable Product)
Contraindications	Not suitable for measuring simple signal strength or paranormal detection.
Allergens / common irritants

How we compare

Feature	Seesii NanoVNA-H4 Vector	Others
Measurement Range	9KHz - 1.5GHz (HF, VHF, UHF)	Varies by brand; many local units are limited to HF or lower VHF ranges.
Display Type	4.0-inch LCD Touchscreen	Often basic LCD or non-touch screens; touch interfaces are rare.
Data Logging	MicroSD card support (up to 32GB)	Rarely available; PC connection for data export is uncommon.
PC Connectivity & Software	NanoVNASaver for Touchstone (.snp) file export	Limited or no PC software support for advanced analysis.
Cost for Full Kit	Unit at ₹12,844 — ₹12,844 per unit	Similar frequency range units often cost ₹15,000 - ₹30,000+.

SKU	dbg0891
GTIN	0889251537400
Brand	Seesii
Model Number	NanoVNA-H4
Measurement Range	9KHz - 1.5GHz
Display	4.0 inch LCD Touchscreen
Battery	1950mAh Lithium-ion
Impedance	50 ohm
MicroSD Card Support	Up to 32GB (card not included)
PC Connection	Via NanoVNASaver Software
Dimensions (approx.)	75mm x 75mm x 18mm
Weight (approx.)	0.34 kg (including battery and accessories)
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

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Seesii NanoVNA-H4 Vector Network Analyzer 1.5GHz | 4-Inch Touchscreen HF VHF UHF SWR Meter

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