Seaview PMA57M1 Modular 5" Aft Leaning Radar Mount with Modular Top Plate, white. Compact 7" x 7" base is designed to not take up a large amount of space. Fits most closed domes and open arrays. The modular design allows the user to not have to replace the entire mount when a different radar or satdome is used. Instead the user can just replace the top plate.