For scanner listeners – RadioReference.com
Scanner Listener? No mattter where you live in in the World, if you need frequency information for a business, public safety, or any radio service, then this is the site for you. Includes the ability to map transmit locations using satellite maps. Download frequencies directly into your scanner. Plus discussion forums and al the rest. Check out the RadioReference site.
RadioReference.com is the world’s largest radio communications data provider, featuring a complete frequency database, trunked radio system information and FCC license data.