In all cases, the signals of Class A stations are supposed to be protected. In practice, many local stations operate at very reduced power at night and do little but create noise on the AM band making it impossible to hear distant stations. History Radio Broadcasting has been around for a long time. Thomas H. White has written an excellent history called Building The Broadcast Band .He has a wealth of knowledge on early broadcasting. Listening Because AM signals travel so far at night, you can often hear stations from hundred of miles away.
Some folks like to keep track of the distant stations they've heard.
You may want to write down the call letters, frequency, and some information about the programming. This log may help . If you are also a baseball fan, you might enjoy this listing of the flagship stations for major league baseball . Dave Hughes has a very nice site where he critiques AM Radio stations in the Washington Area . The Montgomery County Public Schools are located in the Washington-Baltimore area.