Digital Radio Unit ID Sounds and More

This collection was created to help scanner enthusiasts, amateur radio operators, and anyone interested in monitoring the airwaves identify the growing variety of signals heard outside the amateur bands. As technology evolves, more systems are appearing on the air using distinctive tones, bursts, and digital modulations that may be unfamiliar at first. By listening to these examples, you’ll be able to recognize many of the common (and not-so-common) sounds you may encounter while scanning.

All audio samples are provided in MP3 format for ease of playback. Simply click on the play button to hear the sound directly in your browser. 

Whether you’re a new listener or a seasoned operator, this page is designed to make monitoring more enjoyable and informative by giving you the tools to recognize what you hear.

These recordings are in the public domain and may be freely shared and used for personal or educational purposes. If you plan to include these sounds in commercial projects, presentations, or media, please credit the original source as a courtesy to the compiler who made this resource available to the radio community.