About Phase Noise / Signal Source Analysers
A signal analyser is an instrument that measures the magnitude and phase of the input signal at a single frequency within the IF bandwidth of the instrument. It employs digital techniques to extract useful information that is carried by an electrical signal.

AnaPico APPH Phase Noise Analyser Series
Frequency Range from 1 MHz - 7, 26 or 40 GHz
The APPH Phase Noise Analyser offers an indispensable set of measurement functions for evaluating signal sources ranging from VHF to microwave frequencies but also active and passive non self oscillating devices like amplifiers.