Radio 1
Radio 1 : (1) The use of electromagnetic waves to transmit or receive electric impulses or signals without a connecting wire, or the transmission or reception of such impulses or signals. (2) The use of electromagnetic waves to transmit electric impulses excited by the voice or other sounds or by nonauditory instruments at frequencies below those usually used in radar or television. (3) The electronic equipment used for the above, especially for the wireless trans-mission and/or reception of electromatic waves and for activating remote control mechanism
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