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Video cameras in racing cars provide exciting live pictures for TV, but the
image is often spoilt by interference. Now the Formula One Administration in
Britain is patenting a system that gives better reception (GB 2345408). The new
system builds on cellphone technology: each car beams 2.5-gigahertz microwave
signals straight ahead to receivers strewn all around the track edges. The
transmitters change frequency as they “hand off” smoothly from one receiver to
the next, under the control of a central computer that logs the car’s position
by its speed, the time and GPS satellite location. This ensures a much…