ABOUT BSNL On October 1, 2000 the Department of Telecom Operations, Government of India became a corporation and was christened Bharat Sanchar Nigam Limited (BSNL). Today,…
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Introduction to Optical Communication Dr. Manoj Kumar Professor & Head, Dept. of Electronics & Comm. Engg. Introduction to Communication A little bit of history •…
ELL LABORATCIU E RECORD MAY 1940 VOLUME XVIII NUMBER IX Installing a quartz crystal in a filter for the pilot channel of a coaxial -cable system www.americanradiohistory.com…