Roof Mounted Mobile Antennas
I have always used fixed mounts on my vehicles for both HF and VHF antennas which are the boot mounted grub screw type to ensure a good ground is obtained. The only snag is the corrosion that an take place beneath the mount and not forgetting the wibble wobble whenever I opened or shut the back door. I decided to fabricate my own mounts which would bolt to the roof bars giving an extra 5” (127mm) height above the existing mounts. To prevent any further corrosion problems I decided to use 3mm stainless steel as the material which took a bit of drilling but easy enough at a very low RPM using a radial drill. Once I removed any burs I bent the mounts into a right angle and mounted the stainless plates as far apart as possible on the roof bar. Each of the mounts is drilled in line to match holes in the roof bar (2 holes each mount) which I bolted up tight. The antenna mounts went on to the stainless mounts nice and straight, I fixed a short grounding wire to the locking nut on the antenna