transmission of messages

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    ppt on telecommunication industry

    Dear friends, I am abhishek ,doing PGDBM from jim so i have to need of ppt on telecommunication industry. please sent me ,I will highly obliged to you.
    • Abhi1985
    • Thread
    • audio messages coded drumbeats electrical devices industry lung-blown horns microwave communications modern age of electricity optical heliographs orbiting satellites ppt project on telecom semaphore telegraphs signal flags significant distances telecommunication telegraph starting transmission of messages visual signals
    • Replies: 12
    • Forum: Research Project Reports
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