A scrambler is an electronic device which alters the sound of a radio or telephone message so that it can only be understood by someone who has special equipment. a machine that mixes up a radio or telephone message so that it cannot be understood without special equipment
electronic equipment that makes speech unintelligible during transmission and restores it at reception a rapid mover; someone who scrambles; "their quarterback was a good scrambler"; "scramblers can often unnerve a better tennis player