Signal generators, also known variously as function generators, RF and microwave signal generators, pitch generators, arbitrary waveform generators, digital pattern generators or frequency generators are electronic devices that generate repeating or non-repeating electronic signals (in either the analog or digital domains). They are generally used in designing, testing, troubleshooting, and repairing electronic or electroacoustic devices; though they often have artistic uses as well.

Aeroflex Test Solutions

We develop our entire line of signal sources with excellent phase-noise characteristics plus exceptionally high output power.


Supporting a broad range of technologies, Anritsu's signal generators are ready to evaluate all aspects of modern communication systems. High performance specifications coupled with easy to use interfaces ensure best in class performance and fast, accurate measurements.

Rohde & Schwarz

Rohde & Schwarz offers analog and digital signal generators with a variety of frequencies, standards, modulations, and functions.