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Is it necessary to use satellite for long distance T.V. transmission? Give reasons. |
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Answer» The T.V. transmission involves the television signal waves having the frequency range 54 MHz to 890 MHz. These waves neither follow the curvature of earth nor they get reflected by ionosphere. Therefore, their communication via ground wave or sky wave is not possible. The reception of television signals is possible either (i) by using communication geostationary satellite which reflects the television signals back to earth or (ii) by using tall receiver antenna which may directly intercept the signals. |
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