A frequency generator is an electronic device that produces a specific frequency signal, often used in testing and development. These signals can be in the form of sine waves, square waves, or other waveforms, and are essential in various applications, including telecommunications and audio equipment. Frequency generators are commonly used in laboratories to simulate different conditions for testing circuits and devices. They help engineers and technicians analyze how systems respond to various frequencies, ensuring that products meet performance standards before they are released to the market.