Abstract: The present invention relates to the combination of two conventional vector oltmeters into a single network analyzer for an antenna. The first vector voltmeter is connected to the output of an antenna being tested while a second voltmeter is connected to the output of the reference antenna. Signals from these antennas may be fed over long transmission lines to a central unit which permits subsequent signal processing to form data relating to signal amplitude from the antennas and phase relationship. The amplitude and phase data may be fed to the input of a digital computer for network analysis.