Carroll County Amateur Radio Club - Includes information about the Westminster group and their events, newsletter, mailing list, articles, and links. Northeast Maryland Amateur Radio Club - Harford County-based resource includes club and membership information, activities, homebrew plans and regional weather and disaster links. Antietam Radio Club - Includes club and ARES/RACES information, upcoming events and links. Columbia Amateur Radio Association - Serves Howard County. Activity schedule, repeater list, newsletter archive, and satellite information. Mid-Atlantic DX and Repeater Association - Features repeater list, officers, and photo gallery. Based in Frederick. Baltimore Amateur Radio Club - Includes newsletter archive, testing session dates, and hamfest information.