Oscilloscopes and spectrum analyzers are two types of instruments that are used to measure and analyze electronic signals. An oscilloscope is a type of electronic test instrument that is used to display and analyze voltage signals over time. It typically includes a cathode ray tube (CRT) or other type of display, as well as controls for setting the time and voltage scales and triggering the display. An oscilloscope is commonly used in a variety of applications, including troubleshooting and debugging electronic circuits, and measuring the characteristics of signals such as frequency, amplitude, and rise time.
A spectrum analyzer is a type of electronic test instrument that is used to display and analyze the spectral content of a signal. It typically includes a CRT or other type of display, as well as controls for setting the frequency and amplitude scales and selecting the type of analysis to be performed. A spectrum analyzer is commonly used in applications such as RF and microwave design, and may be used to measure the power and frequency of signals, to identify interference or noise, or to analyze the frequency response of a system.