Marine Mount for Tube TSM-B2 | Stainless Steel Ratchet Base for 7/8"–1" Rails

TSM-B2 is a stainless-steel clamp-in ratchet base for mounting antennas on 7/8-inch (22 mm) and 1-inch (25 mm) rails. It can be installed in either a vertical or horizontal orientation, allowing the mounting arrangement to follow the position of the compatible rail. The clamp-in construction defines how the mount attaches to the rail, while the ratchet mechanism provides the adjustable mounting structure for the antenna. Manufactured from Stainless 316, the TSM-B2 is specifically configured as a rail-mounted antenna support rather than a flat-surface base. A 1"-12 male thread forms the documented threaded connection, an important detail when checking how the mount fits into the intended antenna assembly.

A quick-action handle is used to raise and lower the antenna and to return it to the correct upright position after adjustment. This means the antenna position can be changed through the mount’s own ratchet mechanism while the clamp remains attached to the rail. The handle is 115 mm (4.5 inches) long, providing the specified operating element for making these adjustments. When used with TSM1 and TSM2, the mount supports ALFA Tube series devices, defining the documented compatibility arrangement for this product. Together, the supported rail sizes, vertical or horizontal installation, threaded connection, and adjustable handle describe the main considerations for selecting and integrating the TSM-B2 into a compatible antenna installation.