One of my engineering colleagues decided to compare it with our company's Copper Mountain VNA. The 50 ohm was a bit off, but again, considering the price point, acceptable. Speaking of that, the we checked the calibration kit I had with another kit we have. Someday I know I'm going to drop one of the calibration standards in the grass.

One great advantage is the parts are small. I'm used to using N-connectors, so the SMA's seem delicate, but being careful I've had no issues. However, it's very responsive and accurate with a soft stylus, so no problems. I never use the thumb wheel - just the touch screen.

Since others have focused upon what it does well, I will talk about what you might need be be careful about. Its a more advanced product built on top of the first version, the NanoVNA-F V2.I purchased one of early smaller screen versions and though the unit has its quirks, it's an amazing device for the money. JNCRadio VNA 3G is a portable Vector Network Analyzer with frequency coverage 50KHz - 3GHz. It is compatible with Nanovna-Save PC software and its firmware upgraded is through virtual U-disk with Type-C cable. The built-in lithium battery ensures the device stand-by up to 5 hours. Additionally, it has been added up Time Domain Reflectometry function to enhance the performance. It can save more than 10 times calibration with a built-in high quality SMA calibration kit. The VNA supports Touchstone file save and export with RTC time named. For convenience and efficiency, the operating screen has been designed as full touching where the UI design has also been optimized. The built-in RF signal generator output is up to 4.4 GHz and the output power is adjustable. The SMA RF connectors have been applied in the VNA to make connecting DUTs(Device Under Test) easier. With the performance of 70dB dynamic range for S21 and 50dB dynamic range for S11, JNCRadio VNA 3G is very suitable for field measurement, such as measuring HF/VHF/UHF antennas, filters, attenuators, duplexers, etc.

It is designed with a 4.3-inch IPS LCD in the all aluminium alloy case. The sweep speed of JNCRadio VNA 3G reaches 400 pts/s, and the number of sweep points is up to 501. JNCRadio VNA 3G is a portable Vector Network Analyzer with a frequency range of 50KHz - 3GHz.

Guaranteed quality: CE( EMC, LVD), FCC and RoHS compliance.

Built-in 5000mAh battery: up to 5 hours operation.

Nanovna vector network analyzer