An RF analyzer is a test instrument capable of combining vector network analysis, spectrum analysis, and cable and antenna testing of radio frequency signals. Network analysis characterizes the response of a device or circuit to RF signals, while spectrum analysis measures the frequency, power, and noise of a signal. Analyzers treat the device under test (DUT) as an electrical network to measure how the DUT alters radio frequency signals through interaction.
RF analyzers provide spectrum and network analysis on RF devices and the characterization of parameters such as:
RF signal amplitude at different frequencies
scattering parameters (S-parameters)
impedance of the overall network
gain in RF signal power
return and insertion losses
signal phase shifts