The HP Agilent 89400 Series of Vector Signal Analyzers utilizes frequency-domain and time-domain assessment to deliver advanced measurements of complicated and time-varying signals. These vector signal analyzers have a deep-data memory of one million samples maximum (optional). The 89400 Series uses digitizing and signal processing technology to provide complicated signal analysis, including AM/FM/PM demodulation, vector spectrum analysis, digital modulation analysis, and time-gated spectrum analysis. The 89400 Vector Signal Analyzer series utilizes high-speed signal processing to measure magnitude and phase for nonstationary, burst, or CW signals. This series also has several display types to choose from, such as polar, log frequency, and additional options for eye and constellation diagrams.