NWS Radar Tower and Radome Jacksonville, Florida 2006. A radome (radar dome) is a structural, weatherproof enclosure that protects a microwave or radar antenna. The radome is constructed of material that minimally attenuates the electromagnetic signal transmitted or received by the antenna. Radomes protect the antenna surfaces from the environment (wind, rain, ice, sand, and ultraviolet rays) and/or conceal antenna electronic equipment from public view.