02-06-2012, 12:49 PM
WIRELESS NETWORK TECHNOLOGIES
[attachment=23979]
History of Wireless Technology
The beginning
Most credit Guglielmo Marconi, “the father of radio”, with the initiation of wireless technology
1894 Marconi experimented with Hertzian Waves (radio waves) to produce and detect waves over long distances
1896 Marconi established the Wireless Telegraph & Signal Company, the first radio factory
1901 St John’s, New Foundland, Marconi received the first trans-Atlantic wireless signal from Poldhu, England
1905 the first distress signal sent using Morse Code
1919 Radio Corporation of America (RCA) was incorporated, and consumer radio broadcasts for news and entertainment soon became popular
US Military jumps into Wireless
During World War II the US Military used wireless signals with encryption to send battle plans and instructions
US Military started the shift to radio data transmission technology
Wireless Networking: Cellular
1973 Dr Martin Cooper, Motorola Labs, invented the first personal mobile cellular telephone (weighed 2.5 lbs, 30 individual circuit boards, no display screen, 9”x5”x1.75”, 10 hours to charge for 35 minutes of use)
1983 marked American entry into the commercial cellular service market
1987 FCC allows and encourages cellular service providers to use alternate technologies in the 800Mhz radio spectrum to prompt use of digital transmission
[attachment=23979]
History of Wireless Technology
The beginning
Most credit Guglielmo Marconi, “the father of radio”, with the initiation of wireless technology
1894 Marconi experimented with Hertzian Waves (radio waves) to produce and detect waves over long distances
1896 Marconi established the Wireless Telegraph & Signal Company, the first radio factory
1901 St John’s, New Foundland, Marconi received the first trans-Atlantic wireless signal from Poldhu, England
1905 the first distress signal sent using Morse Code
1919 Radio Corporation of America (RCA) was incorporated, and consumer radio broadcasts for news and entertainment soon became popular
US Military jumps into Wireless
During World War II the US Military used wireless signals with encryption to send battle plans and instructions
US Military started the shift to radio data transmission technology
Wireless Networking: Cellular
1973 Dr Martin Cooper, Motorola Labs, invented the first personal mobile cellular telephone (weighed 2.5 lbs, 30 individual circuit boards, no display screen, 9”x5”x1.75”, 10 hours to charge for 35 minutes of use)
1983 marked American entry into the commercial cellular service market
1987 FCC allows and encourages cellular service providers to use alternate technologies in the 800Mhz radio spectrum to prompt use of digital transmission