SeesiiNanovna 10KHz-1.5Ghz Vector Network Analyzer Kit, MF HF VHF UHF Antenna Analyzer Measuring S Parameters, Voltage Standing Wave Ratio, Phase, Delay, Smith Chart with 2.8 Touch Screen

I've only been using this for a couple of hours so far - and I'm very impressed!Once you've calibrated with the open, short & load plugs supplied, the accuracy is surprisingly good for an inexpensive meter.Even the calibration plugs return the same results as significantly more expensive ones.I've tried standard SWR measurements, Smith Chart for measuring inductance & capacitance and the TDR function for measuring the length of a piece of coax. The Velocity Ratio I used was a bit of a guess - but the result was within 10cm over 100m.

used for ham radio measurements of aerials tuned ccts etc

Good product but cheaper elsewhere.