On an international basis, the 5000-5250 megahertz (MHz) frequency band is allocated to the aeronautical radionavigation service (ARNS).
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Airport Wireless LAN: Technology Survey and Simulation Tool Development
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On an international basis, the 5000-5250 megahertz (MHz) frequency band is allocated to the aeronautical radionavigation service (ARNS). The 5030-5091 MHz portion is in use for microwave landing system (MLS) applications. The aviation community is exploring other applications in the 5091-5150 MHz band (referred to as C-band in this report).