Saturday, January 07, 2006

telecom pioneers

01. Claude Chappe - Optical Telegraph - 1794.

02. First Commercial Link between Washington And Baltimore - 1843.

03. Alexander Graham Bell - Telephone - 1876.

04. ElectroMagnetic(Em) Waves Induction - Michael Faraday at the same time Joseph Henry - 1831.

05. James C. Maxwell (1831-1894) - Theorotical Foundation of Em field with famous equation - 1864.

06. Heinrich Hertz (1857-1894) - First to demonstrate Electrical Transmission and proving Maxwells equation.

07. Nikola Tesla (1856-1943) - Increased distance of Transmission.

08. Guglielmo Marconi (1874-1937) - First Wireless Telegraphy demo in 1895.

09. First Radio Broadcast in 1906 when Reginald A. Fessender (1866-1932) Transmission Voice and Music for Christmas.

10. 1915 - First Wireless Voice Transmission was set up between NewYork and San Francisco.

11. Electro Vaccum Tube - 1906 - Lee DeForest (1873-1961) and Robert Von Lieben (1878-1913).

12. 1928 - TV - John L. Baid (1888-1946).

13. First Telecasting - 1932.

14. FM - Edwin H. Armstrong - 1933.

15. GSM - 1983(Europe) and AMPS(US).

16. CTI - 1984, CTO - 1980 and DECT - 1991.

17. GSM Standardization in 1991 with greater than 5000 pages of Documentation.

18. TDMA(IS-136) CDMA(IS-95).

19. 1996 - HIPERLAN - ETSI and 1197 - 802.11 - IEEE.

20. 1998 - IRIDIUM and UMTS: IMT proposal for IMT 2000(GSM+CDMA).

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