Oil Platforms
Three GPS/ADF oil platforms include Lafayette (KLFO), Galveston (KGLO), and Corpus Christi (KNGO) in version 4.0. Each uses non-directional beacons such as LOPU on 477.0 kHz, GOPO 396.0 kHz, and CCOP 391.0 kHz, with VOR codes LOP, GOP, and CCO and 100 NM ranges.

- United States of America

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