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This dataset contains the spatial extent of AM tower structures in the state of Florida. AM stands for "Amplitude Modulation", which refers to the means of encoding the audio signal on the carrier frequency. In many countries, AM radio stations are known as "medium wave"(MW) stations. AM stations are also sometimes referred to as "standard broadcast stations", since AM was the first form used to transmit broadcast radio signals to the public. AM towers are unique in that AM stations have different operations for daytime and nighttime operation. This is because AM signals go further at night, due to atmospheric changes. Usually day and night operations are at the same site, but some may use different sites. These daytime and nighttime operations lead to duplicate records at the same location. Because we are only interested in tower locations and not individual AM stations for this particular dataset duplicate records representing day/night stations were removed. |