mailing list archives
Re: An Idea
From: Bill McGonigle <mcgonigle () medicalmedia com>
Date: Mon, 17 Sep 2001 10:04:58 -0400
On Saturday, September 15, 2001, at 12:14 AM, Jeffrey C. Ollie wrote:
1) In addition to traditional "black boxes" there would be
transmitters in planes that would transmit flight data to a network of
ground stations that would record the data. The storage problems
would not be too bad as recordings would be recycled after N days.
4) The transmitters should be designed and installed so that they
would be difficult to disable while a plane is in flight.
Piggy-backing the signal on the in-flight telephone system would fit
these criteria. Airfone (GTE?), and probably its competitors, have
130-some ground stations designed for signal coverage over most of the
US and neighboring countries/oceans - they switch over to satellite
service when out of range of the US infrastructure. The antenna is on
the belly of the aircraft. The whole system should be able to run on
one channel, squeezing the data portions in around the framing around
the voice data.