Birds are much less attracted to flashing lights on towers, such as L-864 (red) or L-865 (white) obstruction lights. This puts the birds at greater risk of collision with guy wires, tower structural members, and antennas that are hard to see in dim light. Non-flashing red lights, such as L-810 side-marker lights, can attract birds when illuminated. Why Do FM Frequencies End in an Odd Decimal?.Why AM Radio Stations Make Changes at Night.Unattended Operation of Radio and Television Broadcast Stations.Tower Owners: Save Birds! Save Money! through red obstruction light modifications.Special Temporary Authority / Emergency Antennas.Silent AM and FM Broadcast Station Lists.Noncommercial Nature of Educational Broadcasting.New Visitors - Finding Broadcast Radio and Television Information on the FCC Website.Distance and Azimuths Between 2 Sets of Coordinates.Degrees Minutes Seconds to/from Decimal Degrees.Antenna Structure Registration (ASRN) Records Within A Radius. Antenna Height above Average Terrain (HAAT) Calculator.
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