However, the modern champion is the antenna analyzer which is a way of measuring vector impedance. [Captain Science] did a review of an inexpensive N1201SA analyzer. This device is well under $ ...

Rohde & Schwarz has expanded its vector network analyzer portfolio with the R&S ZNB3000, which offers best-in-class radio frequency (RF) performance. It combines high measurement accuracy with ...

Most people, however, just see them as cheap. So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a few hundred ...