1、Applicable Rails: Base measures standard 1‑14in male thread, recommended for installation on 22‑25mm (7/8‑1in) vertical, horizontal or oblique rails.
2、316 Stainless Steel: Constructed corrosion resistant investment cast 316 stainless steel, has good wear resistance in humid air or high temperature weather.
3、With Lever Handle: This ratchet rail antenna base features a lever action handle that makes lowering the antenna quick and easy for passing under trailering.
4、Adjustable Ratchet: The antenna base has 2 adjustable ratchets, the upper ratchet can be adjusted to 270 degrees, the lower ratchet can be adjusted to 180 degrees.
5、For Marine Use: The VHF antenna mount is suitable for boats, yachts, RVs, etc., it has a compact structure and standard size, which is easy to install and replace.
Features: The antenna base has 2 adjustable ratchets, the adjustable angle of the upper ratchet is 270 degrees, and the adjustable angle of the lower ratchet is 180 degrees