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Alaska tries ADS-B system

Article Abstract:

The FAA has started a program that will use automatic dependence surveillance-broadcast (ADS-B) technology as an aid to air navigation in Alaska's Yukon-Kuskokwim Delta region. As part of the program, the FAA has installed ground broadcast transceivers and automated weather observation systems to provide pilots with critical information. Aircraft equipped with ADS-B received weather information from the ground as well as aircraft position, speed, altitude and direction.

Air Traffic Control, Alaska

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US stalls over sole means

Article Abstract:

The Federal Aviation Administration (FAA) has scrapped its policy of promoting satellite-based global positioning systems (GPS) as a sole means of navigation. FAA Administrator Jane Garvey noted that agency evaluation of navigation systems found that a ground-based backup air navigation system will continue to be a must. Thus, GPS may most likely become a primary means of navigation but will have a backup system based on a different positioning technique.

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Protecting satellite signals

Article Abstract:

The second civil Global Positioning System cannot provide for the needs of the aviation industry due to its vulnerability to interference. The Dept of Transportation (DoT) puts a high priority on the protection of the frequency used by the current civil signal. A DoT official announced that the second civil signal would be transmitted at the existing L2 military frequency. The second signal will be available by 2005.

Dept of Transportation

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