6" Ground Plane Disc Adjustable Upper Radius Rods and you want a little

and you want a little extra support

2 Pumper Systems only

Why use this style instead of a true blow off valve

For customers with a pumper adding a VSC for the first time

This waterproof radio was built to take on the elements

6" Ground Plane Disc Adjustable Upper Radius Rods and you want a littleMade for vehicles with a non metal roof that uses a ground plane antenna. For best performance, mount the Ground Plane Disc on top of your roof and your antenna on top of the disc. The Ground Plane disc can be mounted on the underside of the roof, but antenna performance may decline. 4 holes in the ground plane allow you to incrementally adjust the position of your antenna once it has been mounted. 6" Diameter Alloy construction (4) 3 8" holes