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In the essay on radio, it is interesting to note that the radio essay began on wireless technology and was also called telephony or even wireless telegraphy in many cases. Radio essay reveals the invention of an instrument which was prepared and designed to receive and send the radio waves.
My reason for emailing you is quite simple I am currently writing anessay on radio, including both technological and sociological issuesboth past and present. I have read your site several times and the mainthing that confuses me is information on broadcastingfrequencies/distances and formats.