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To: Maurice Winn who wrote (16626)	9/8/2000 11:42:27 PM
From: arun gera	Respond to of 29987

Maurice: There is a company called Aircell that is making cell phones for aviation use. More information on www.aircell.com Here is some info: AirCell was born out of the need for affordable voice and data communications for general aviation pilots and passengers. AirCell is pleased to announce affordable communication that doesn't end where the sky begins. Clear and affordable airborne voice and data connections are as close as your aircraft, and it's only available from AirCell. While traditional cellular providers serve the terrestrial market, AirCell provides a high-altitude "overlay" of 800 mhz coverage specifically for airborne aircraft Coverage Map. AirCell's unique advantage is the reuse of the existing cellular network infrastructure, by placing specialized antennas at existing ground cellular sites across the nation. In addition to the robust network of antennas already in place, AirCell also benefits from the cellular industry's low-cost mobile equipment, sophisticated software and value-added services, and is able to pass these benefits to its customers. Product Comparison Chart In addition to basic communication applications, AirCell's technology enhances the safety of flight in regard to communications. Pilots can now affordably access more decision making information in flight, and AirCell's phones can also provide a reliable back-up in case of a communications failure of the aircraft's normal radios. Also, by dialing 9-1-1, AirCell customers can be immediately connected to the ATC facility closest to their position should an emergency arise en route. Currently AirCell is in the process of signing dealers to sell and install units nationwide. AirCell is also rapidly proceeding with the installation of additional cell sites around the country in order to complete their nationwide network. They expect to have 100 sites in by late 1999, which should provide good coverage in most of the major air traffic routes.

To: Maurice Winn who wrote (16626)	9/9/2000 6:15:53 AM
From: John Walliker	Read Replies (2) \| Respond to of 29987

Maurice, But hang on John, if the nearby base stations [straight under the plane] can't see the handset, what does it matter if the handset goes at full brightness to reach a distant one that can see it. The ones directly below will see it, but at a reduced signal strength - reduced enough to prevent power control from reducing the transmitted power as much as would happen at ground level. Just one handset would probably make little difference, but lots of planes, each with hundreds of people over a city might bring a network to its knees. John