Worldwide OMEGA and Very Low Frequency (VLF) Transmitter Outages, January to December 1980.
Data rept. Jan-Dec 80,
FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ
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An investigation of worldwide OMEGA and very low frequency VLF transmitter outages during 1980 was conducted with emphasis on simultaneous outages. Data includes frequency and duration of simultaneous outages and total yearly percentage shutdown for each transmitter. Scheduled outages are specifically noted. The most significant dual OMEGA outage lasted 4.9 hours when the Argentina transmitter was shutdown to correct tower structural problems while La Reunion was down for annual maintenance. Author
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