At the top of each hour, listeners of Westwood One affiliated stations get a six minute news update from CBS News. Since early 2003 NBC News went back into the radio news business, also providing one-minute updates to Westwood One affiliates anchored by its big names. ABC News, of course, also has its own radio network and top of the hour news service.

Here’s the sounder that the CBS Radio News uses when they have a special report. It’s part of the package composed by Peter Fish.