Dalante Person MARTIN COOPER BACKGROUND INFROMATION Martin Cooper
Dalante Person MARTIN COOPER
BACKGROUND INFROMATION Martin Cooper, byname Marty Cooper (born December 26, 1928, Chicago, Illinois, U. S. ) American engineer who led the team that in 1972– 73 built the first mobile cell phone and made the first cell-phone call. He is widely regarded as the father of the cellular phone.
IMPACT IN TECHNOLOGY Car-based mobile phones had been in limited use in large U. S. cities since the 1930 s. By the early 1970 s, they were used with a communications system called the Mobile Telephone Service, which carried signals over the same VHF (very high frequency) that FM radio stations used. Calls were placed not by dialing telephone numbers, but by locking onto specific channels. The system was unreliable and prone to congestion in urban areas, where it was impossible for more than 24 channels to operate on a given network. Moreover, the phones cost between $2, 000 and $4, 000 and had to be installed in an automobile because of the power source and antenna that were both required for use; waiting lists for an available account—which usually only came up when a subscriber chose to disconnect the service—could be as long as three years
WHERE ARE THEY NOW Supposedly, 2016 has been a busy year for Martin Cooper (inventor). However, we do not have any detailed information on what Martin Cooper is doing these days. Maybe you know more. Feel free to add the latest news, gossip, official contact information such as mangement phone number, cell phone number or email address, and your questions be
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