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On radiating (sending out) and AM modulated signal, the total radiated power is due to the energy carried by \omega c,\left ( \omega c-\omega m \right )\: and\:\left ( \omega c+\omega m \right ). Suggest ways to minimise the cost of radiation without compromising on the information.

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The overall power radiated because of energy carried by \omega c,\left ( \omega c-\omega m \right )\: and\:\left ( \omega c+\omega m \right )

Since the information is only transmitted by the amplitude modulated signals that are \left ( \omega c-\omega m \right )\: and\:\left ( \omega c+\omega m \right )   as these sideband frequencies are mainly closer to the carrier frequency, the cost can easily be minimised by transmitting both these signals.

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