TACO Marine Grand Slam Electric VHF Antenna Mount - Introducing the Grand Slam 850 Electric VHF Antenna Mount! Designed with safety and innovation in mind, boaters can adjust the position of their VHF antenna with the simple push of a button from the comfort of their helm. The GS-850 is a fully electric unit with hidden wires inside the hardtop. This mount easily installs to the surface of the hardtop and fits all top thicknesses. Standard 1in-14 thread (male) shaft to accept standard VHF antennas up to 8ft; No under-mount clearance required Machined / Anodized aluminum body with a light brushed finish Threaded shaft for consistent lift and descent Brass bearings for smooth operation Features breakaway pin for manual operation; Kit includes drill template and installation instructions Includes 6in lead of 20-gauge wire from the base; 12-volt DC power supply for lift and descent Pairs with Backing Plate (BP-0850AEY), which is sold separately; Pairs with 6deg Wedge Plate (WP-850-950), which is sold separately; Accepts 3A fuse in the main +12 VDC power feed (not included) Sold individually Made in the USA 1-year limited warranty;