No person shall operate any loudspeaker, including any radio or other electronic amplifying device, within any county park in a loud or raucous manner except at times and in areas specifically designated for such use; nor shall any person operate such a loudspeaker within a county park and in or about a designated camping area between the hours of 10:00 p.m. and 8:00 a.m. at a volume greater than 30 decibels, as measured in accordance with chapter 10.01 SCC. (Added by § 30 of Res. adopted Apr. 22, 1974; Amended by § 3 of Res. adopted Oct. 4, 1978; Amended by Ord. 98-076 § 30, Aug. 19, 1998, Eff date Aug. 31, 1998).