For Very Long Distance Communication Which Optical Fibre Is Used

In satellite the data rates are very low. So the distance from the ground to the satellites setups unintended delays within the transfer.

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Alexander Graham Bell invents the telephone.

. - In 1964 critical theoretical suggestion by Charles K. -Advent of Laser in 1960s but didnt work for optical communication due to attenuation problem. - For long range communication system the loss limit was set to 20 dBKm was 1000 dbKm or higher at that time.

By 1878 the first long-distance call trials are conducted in Australia at a range of 400km. Also spelled fibre or fiber in the loop is a generic term for any broadband network architecture using optical fiber to provide all or part of the local loop used for last mile telecommunicationsAs fiber optic cables are able to carry much more data than copper cables especially over long distances copper telephone networks built in the 20th century are being. In fiber optics the data rates are high including less propagation delays.

The first telephone exchanges open in Melbourne and Brisbane by 1880. Satellite communication is suitable for long-distance communication. Kao and Charles Hockam.

Fiber optic cables use a lot of BW. Fiber to the x FTTX.

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Todayhistory 22nd April 1977 Optical Fiber Is Used For Telephone Transmissions For The First Time Fiber Optic T Current Affairs Quiz Fiber Optic Drive Online