The related NanoVNA has been transforming amateur radio, now almost everyone that can afford a radio can afford a VNA that lets them characterize, tune, and rep

The related NanoVNA has been transforming amateur radio, now almost everyone that can afford a radio can afford a VNA that lets them characterize, tune, and repair antennas and other RF components. Gone are the days when you had to beg a club member with a $10,000 MSRPed bench VNA in the back of his truck to swing by. You can pull a VNA out of a bag while still up the tower. High-Q antennas designs that are sensitive to construction and mounting are much more realistic to use when you can VNA them in situ.