If you hear a radio signal that is transmitting out of band or interfering, please report it here. Line thickness indicates signal strength, harmonics are coloured the same and transparency indicates age.
Note: A persistent "refresh-bug" exists. The report is logged, but not displayed on the map. I'm aware of it and working out what is causing this to happen.
Note: Google Earth gives a better view of the data. Use the link to the kml file at the bottom of the page to view this in Google Earth (the refresh bug exists here too!)