SC Marine Electronics Charleston, South Carolina's headquarters for repairing broken marine electronics and installation of new electronics. Have an inoperative GPS, VHF, RADAR, or anything else electronic? Let us get your broken marine electronics back into operational condition. Looking to have a new chartplotter installed? You have come to the right place. SC Marine Electronics specializes in electronic repair and installation of marine electronics from communication to navigation. We install electronics on yachts of all sizes.