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Handheld vector network analyser with 4.0 inch touchscreen and metal shield

BFKK

BFKK NanoVNA-H4 4.3 10KHz-1.5GHz 4.0" touch screen measurement tool

SKU CH-1B0T-E5JNJ

A handheld vector network analyzer measuring 10 kHz to 1.5 GHz with a 4.0 inch touchscreen, 1950 mAh battery for up to eight hours, metal shielding, microSD slot, and PC or phone app control

  • TypeStroboscopes
  • 0" touch screen enables direct on-device operation
  • 1950mAh battery delivers up to 8 hours continuous use
  • Metal shielding reduces external interference for better accuracy
  • 10kHz–1.5GHz range covers HF VHF UHF bands
  • MicroSD slot saves field data and screenshots

Vector Network Analyzer 10KHz-1.5GHz

The BFKK NanoVNA-H4 is a portable vector network analyzer covering 10KHz to 1.5GHz. It targets radio amateurs, electronics engineers, and DIY builders who need to evaluate antenna resonance and SWR in the field or on a bench. The unit ships with firmware focused on antenna performance measurement using TX/RX methods for S11 and S21 parameters.

Touch Operation and MicroSD Logging

A 4.0 inch touchscreen and a multi-function top switch provide two ways to control the instrument. Measurement data and screenshots can be saved directly to a MicroSD card up to 32GB, while an on-screen clock lets you timestamp every capture. The metal shield reduces external interference to improve accuracy during critical readings.

Battery Life and Frequency Performance

A 1950mAh rechargeable battery delivers up to eight hours of continuous operation, supporting extended field sessions without mains power. The Si5351-based frequency algorithm provides better than 70dB dynamic range from 50KHz to 300MHz, with usable harmonic extension through the 300MHz to 900MHz band and onward to the 1.5GHz limit.

Highlights

  • 0" touch screen enables direct on-device operation
  • 1950mAh battery delivers up to 8 hours continuous use
  • Metal shielding reduces external interference for better accuracy
  • 10kHz–1.5GHz range covers HF VHF UHF bands
  • MicroSD slot saves field data and screenshots

Specifications

TypeStroboscopes

Questions about this item

How can I confirm the NanoVNA-H4 is measuring correctly after I connect an antenna?

The 4.0 inch touch screen displays S11, S21, voltage standing wave ratio, phase, delay and Smith Chart results in real time so you can verify antenna resonance and SWR immediately after setup.

What accessories are included and what must I source separately for the NanoVNA-H4?

The analyser ships with a 1950 mAh rechargeable battery giving up to 8 hours continuous use; a micro-SD card up to 32 GB for data and screenshot storage is not included and must be purchased separately.

Which firmware version should I choose for the NanoVNA-H4 to cover the full 10 kHz to 1.5 GHz range?

Select the latest 4.3 firmware — it extends the harmonic output of the SI5351 to 1.5 GHz, while the direct 50 kHz to 300 MHz band delivers better than 70 dB dynamic range.

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