Local oscillator

A local oscillator is a device in radios and communication systems that generates a steady, precise signal at a specific frequency. It acts like a reference tone used to help the receiver tune into a desired radio station or to convert signals to a different frequency for easier processing. By mixing its signal with incoming radio waves, the local oscillator helps extract the desired information, such as music or voice. Essentially, it provides a stable, known frequency that allows the device to accurately identify and process specific signals amidst many others.