Accession Number : AD0759009

Title :   Omega in the Arctic.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Brogden, John W.

Report Date : APR 1973

Pagination or Media Count : 18

Abstract : The Federal Aviation Administration (FAA) is sponsoring a program at the Naval Research Laboratory to investigate the effects of polar cap absorption events (PCA), and other propagation anomalies, on the Omega Navigation System when used in the high latitude regions. There is interest by FAA in this area because of the so-called 'polar routes' of the commercial air lines. Preliminary results presented show the effects of two PCA events. One of these produced a phase advance of 50 CELS for the 10.2 kHz Norway-Hawaii transmissions as received in Washington, D.C. (Author Modified Abstract)

Descriptors :   *HYPERBOLIC NAVIGATION, *RADIOFREQUENCY INTERFERENCE, *ARCTIC REGIONS, VERY LOW FREQUENCY, POLAR REGIONS, IONOSPHERIC DISTURBANCES, OMEGA NAVIGATION.

Subject Categories : Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE