Hi All

Where to bye an accurate 50 Ohm +/- 0.1 Ohm SMA Load to ensure a good quality NanoVNA calibration ?

Indeed the most important capability of a nanoVNA is to be calibrated by an external reference 50 Ohm load, the firmware with it's float point computing will do the rest, all quality or default of NanoVNA will be affected by the quality of the calibration Load 50 Ohm , if it has a large band resistor behavior without resonnance or parasitic inductors or capacitors and if it has an accurate resistor value to be refered to, i am not so sure that the loads given by NanoVNA vendors are very accurate , ohmetre measurement gives 50 Ohm +/- 1 Ohm wich is no so good . i would like to bye a better 50 Ohm load reference to be sure to have a good wide band value calibration .

73's Nizar