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Science Fair Projects - FM broadcast band |
 | | Originally, the FCC devised a bandplan where stations would be assigned at intervals of 4 channels, or 800 kHz separation, for any one geographic area. |
 | | On other frequencies, stations could be Class B (50000 watts, 500 feet) or Class C (100000 watts, 2000 feet), depending on which Zone they were in. |
 | | In the late 1980s (exact year, anyone?), the FCC switched to a "bandplan" based on a distance separation table using currently operating stations, and subdivided the class table to create extra classes and change antenna height limits to meters. |
| www.all-science-fair-projects.com /science_fair_projects_encyclopedia/FM_band (706 words) |
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