Seaview Mast Mount f/Select Radars - KVH / Intellian / Raymarine / Sea-King [SM-18-A]SM 18 A Seaview Mast Mounts are designed to have the radar or satdome as close as possible to the mast. Ultra heavy duty mounting feet and rivets are used to secure the Mast Mount to the mast. Adjustable Designed with fore and aft adjustable rails so that you can have the radar as close as possible to the mast. Incredible Strength The solid under body construction not only greatly improves strength but also hides radar cables. On certain models.