RFandEMF
✓Spectrum Analysers
RFandEMF RF Explorer 6G Combo Handheld Spectrum Analyzer with Aluminium Case Free + Downloadable Software
★★★★★2
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Price
$103.99
Upgraded NanoVNA-H4 Vector Network Analyzer, SeeSii Latest V4.4 9KHz-1.5GHz HF VHF UHF 4" Touch Screen Antenna Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay, Smith Chart
★★★★★
$103.99
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1
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About this item
- 😊【2022 UPGRADED NANOVNA ANALYZER】: SeeSii Nanovna-h4 Vector Network Analyzer is developed by Hugen. With the latest 4.4 version, a 9 KHz-1.5 GHz measure range, a 4.0-inch LCD touchscreen, mini and portable design. This Antenna Analyzer provides outstanding vector network measurement capabilities and is 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 MicroSD card port, so you can save field test data or screens to a MicroSD card at any time, supports up to 32GB memory card. (Not included in the package).In addition, different from the old version NanoVNAs, the date and time can be customized, which is convenient for you to record further and save data..The default firmware's 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 dynamic, 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 trouble shooting 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.The firmware of the nanovna-h4 can be updated by the user. New versions of the firmware needed pls contact us for download link
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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