Have you ever been spinning that VFO and heard something that you did not recognize? Maybe it was something you never heard before or the scope was showing a pattern that puzzled you? Well, chances are you are not the first or last to experience that signal.
The Signal Identification Wiki is a repository of hundreds of signal descriptions, photos and even audio that you can use to reference and, of course, identify almost everything you come across on the airways. Since it is a wiki, you can also expand on existing entries or create a new one that may not be on the site. It is a pretty great place to spend some time expanding your knowledge. Enjoy!