This wiki serves as a resource for identifying radio signals using example sounds and waterfall images. The signals are typically received and recorded using software-defined radios such as the RTL-SDR, Airspy, SDRPlay, HackRF, and more. The wiki is open for editing by anyone, so if you come across missing or incorrect information, you can make the necessary corrections. Additionally, there is a discussion tab and comments box for further discussion about the signals. A Discord server has been created for signal enthusiasts to chat. There is also a companion app called Artemis 3 that provides offline access to known reference signals, sorting and filtering options, and audio samples and waterfalls. The wiki currently has 494 identified signals in its database, 336 unidentified signals, and 62 requested signals. There is a list of recently added and updated signals, as well as recently added and updated unidentified signals.
https://www.sigidwiki.com/wiki/Signal_Identification_Guide