Beschreibung
The NanoVNA-H4 is no ordinary instrument. This DIY marvel offers professional-grade vector network measurement capabilities in a compact, handheld form factor. Imagine a powerful tool that fits in your palm, boasting a vivid 4-inch LCD touchscreen display. Not only is it portable, but its built-in 1950mAh battery keeps you going, or you can utilize USB power for extended use.
Under the hood, the NanoVNA-H4 leverages an ingenious frequency algorithm. By harnessing the odd harmonic extension of the Si5351 chip, it extends measurement frequency up to a remarkable 1.5GHz. Here's the breakdown:
- 50kHz-300MHz: the Si5351's direct output delivers an impressive dynamic range exceeding 70dB.
- 300MHz-900MHz: the extended band maintains a solid dynamic range above 60dB.
- 900MHz-1.5GHz: even at higher frequencies, the NanoVNA-H4 provides a respectable dynamic range exceeding 40dB.
The default firmware prioritizes antenna performance analysis. Utilizing the TX/RX method, it effortlessly measures critical S11 and S21 parameters. For those requiring S12 and S22 measurements, a simple manual reconfiguration of the transceiver port wiring unlocks this additional capability.
Taking your analysis further? Partner the NanoVNA-H4 with PC software like NanoVNASaver. This software bridges the gap, allowing you to extract data from your NanoVNA and display it on your computer for in-depth analysis. But that's not all! NanoVNASaver facilitates saving this valuable data in Touchstone (snp) file format. These industry-standard files can be seamlessly imported into various radio design and simulation software, empowering you to refine your creations.
The commitment to accuracy extends beyond software. The NanoVNA-H4 features a robust metal shield that effectively minimizes external interference, ensuring your measurements remain precise and reliable.
Specifiactions:
ABS case: 75mm x 133mm x 18mm
Measurement frequency: 10KHz -1.5GHz
HW version：4.3
RF output: 0dbm (±2dbm)
Measurement range: 70dB (50kHz-300MHz), 60dB (300M-900MHz), 40dB(0.9G-1.5GHz));
There may be errors caused by nonlinear transformation of fundamental wave when using harmonic measurement.
Port SWR: < 1.1
Display: 3.95 inch TFT (320 x 480)
USB interface: USB type-C communication mode: CDC (serial)
Power: USB 5V 200mA, built-in 1950mAh battery, maximum charging current 1A
Number of scanning points: 101 (fixed)
Display Tracking: 4, Marking: 4, Setting Save: 5
Frequency Tolerance:<2.5ppm
Frequency Stability:<0.5ppm
Package contents:
1X NanoVNA-H4 (with 1950mAh battery)
1X USB Type-C data cable
1X Type-C To Type-C cable
2X 15cm SMA male to male RG316 RF cable
1X SMA male calibration kit - OPEN
1X SMA male calibration kit - SHORT
1X SMA male calibration kit - LOAD
