Off-road driving puts a significant strain on light-weight antenna mounts currently being sold. Relatively strong "ball" mounts require drilling 3 holes in the body of your vehicle. However, these permanently damage your exposed sheet metal, and can eventually cause fatigue and cracking of of the body panel. GeoTool Antenna Mounts take advantage of the extra strength of the stake pocket holes, which are designed to handle large racks for transporting equipment and materials. Our mounts are inserted into the stake pocket, and anchored to the bottom of the pocket by a 9/16" bolt. GeoTool mounts will endure rugged off road conditions, and will easily cope with modern freeway and turnpike driving.

Your new GeoTool Antenna Mount will eliminate the need to drill holes in the exterior body of your truck, and will maintain a mounting location optimal for long distance communications. Many trucks already have a hole drilled in the bottom of the stake pocket. However, you may not find this hole on Dodge, Toyota, Mazda, and Ford Ranger trucks. These trucks will accept the mount but will likely require drilling of a 5/8" diameter hole inside the bottom of the stake pocket to accomodate the 9/16" anchor bolt. Drilling this hole is not as difficult as it may sound. Further the hole does not damage the exterior of the truck, and is completely invisible from the outside of the truck when the mount is removed.

Our mounts are made in several sizes to closely fit stake pockets on trucks currently available in the U.S. All mounts require minor shimming at the top to provide a snug fit. Shimming materials are provided (except for plastic electrical tape). Spacers (stainless steel washers) for adjusting the height of the mount in the stake pocket are also provided.

If you drive a late model CHEVROLET, GMC, FORD, TOYOTA or DODGE full-size pickup truck, or a MAZDA, FORD RANGER or FORD THUNDERBOLT you will appreciate the durability and sophistication of the new GeoTool Pickup-Truck antenna mount! The body of the mount is anodized for weather protection. The ground connection under the top of the mount has a clear conductive coating for weather protection. The anchor bolt hole is drilled after the mount is anodized so that only the bare stainless steel anchor bolt fastens into clean aluminum, for a good ground connection. In addition, all exposed exterior hardware is either stainless steel, or chrome- plated brass. NMO connectors are brass, but are typically not exposed to the elements when the antenna is installed. 

GeoTool provides mounts with standard 3.8"-24 threaded coupling nuts for most antenna masts, and with NMO and SO-239 VHF/UHF antenna adaptors, and a grounded stud mount.

VHF mounts come with either an SO-239 (Model VHF1-x), or NMO (Model VHF2-x) connector. They have low SWR (Note: the SO-239 version is has a slightly better SWR above 2m) and will fit all trucks. The SO-239 version is also a perfect match for the Yaesu ATAS-100 HF SCREWDRIVER ANTENNA!!! The VHF/UHF mount block is the same for either antenna adaptor, so if you change to an antenna with a different mount, you need only purchase and install a new adaptor. 

We also provide GROUNDED-3/8"-24 STUD MOUNTS, models SM1-x and SM2-x. They are made from our HF1-x and shorter HF2-x mount bodies, respectively. They have a 3/8"-24 bolt threaded securely into the top opening of the mount, and will support SCREWDRIVER ANTENNAS designed for SINGLE POINT BASE MOUNTING. The mount is NOT recommended for some screwdriver antenna requiring two point mounting systems for extra mechanical support. 

LOOP ANTENNA (mobile loops for VHF/UHF) users will also enjoy the strength and versatility of the grounded stud mount. With a 3/8"-24 coupling nut, standard masts can be attached to mount antennas such as the KB6KQ loop antennas.

Click on these three Patent Drawings of antenna mount for more detail:

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