[KB9RLW] wanted to build a vector network analyzer (VNA), but then realized he could buy a ready-made one without nearly the cost it would have been only a few years ago. The network in this case, by ...
Vector network analyzers (VNAs) are amazing tools that not only let you check an antenna’s VSWR (and return loss) over frequency, but also display the complex impedance of the antenna. Some can be ...
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