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This collection of API's returns data related to broadcast radio and television service area. The Coverage API gives the FM or TV contours (protected or interfering) for an arbitrary location, field strength, and antenna pattern. The Entity API gives the contour for an existing AM, FM, or TV station, identified by Callsign, FacilityID, or ApplicationID. The Elevation API gives the elevation at a specified location (latitude and longitude). The HAAT API gives the HAAT (Height Above Average Terrain) for a specified location, RCAMSL (Radiation Center Above Mean Level), and number of radials. The Profile API gives a set of elevations along a specified azimuth, between a set of points. The Distance API gets the distance to a specified field strength for FM and TV stations. The AM Pattern API gets the antenna pattern for a specified AM station.