ROHN UHF25G Tower Side Arm Mount
For UHF & FM Whip Antennas. Fastens with Saddle Clamp to Antenna Post and "U" Bolts to the ROHN 25G Tower Section Rail. Projects your Antenna mast held in the clamp (up to 1.25 inches in Diameter with bolts supplied) to distance of 12 inches from the tubular side rail of the tower face to which it is attached. If there is any question of flexion in this mount, get two of them and clamp your mast with some distance between the two. The mount is 7/32 inch thick (almost 1/4) and is just about an inch wide. It's Hot Dip Galvanized, it's tuff stuff. The Rohn 25G tower is a popular choice for large VHF/UHF antennas and medium sized HF antennas. As a guyed structure, the ROHN 25G can rise to a maximum of 190 feet. Consult ROHN Catalog Links at Footer Section below for ROHN 25G Tower Details.
ROHN Produces this UHF and FM Whip Antenna Mount specifically for the 25G Tower. Saddle Clamp for the Antenna Post, "U" Bolts secure the mount to the ROHN 25G Side Rails. American Steel... Buy ROHN, Buy American.
It is Important to choose an Antenna Mount and Wall Mounting Location with a Picture of the Finished Antenna Installation in Mind. Be Sure to First select a location that lends itself to applying a Vertical, Cantilevered, Twisting Load without Compromising the Integrity of the Wall Material you affix to. Most Modern Exterior Decorative Wall Finishes most often do not have the Strength to Hold the Weight and Pressure of a Large TV Antenna under Wind Load without fail. Beams and Studs within the Wall are an Absolute Must to Locate when the Wall Composition is anything other than Solid wood or Concrete. Attach to these Strength Members. Further, Think about what's underneath the Wall exterior. Is it stronger, will it yield to Pressure over time as well? Sandwich additional Material (wood or steel) to the backside or both sides of the wall at the points where the mount attaches, as to distribute the load on relatively weak wall materials and to dampen vibration from Wind. Weather Proof the Installation to Maintain the Integrity of your Home. Next consider the Location over a Lifetime of Adjustments, does it lend itself to modifications in Height or Direction? Larger Antennas increase the surface area presented to air movement, Hence, Wind-load does increase. As the length of the mast increases from Its last attached point on the structure, the torque applied also increases with Weight and Wind-Load, requiring a more substantive attachment and Load-Bearing material. Keep the Distance Minimal from the Antenna to the TV's and Equipment you feed, as to minimize loss and the need for Amplification. Further, the NEC (National Electrical Code partly defines a good Ground connection as being as short as possible, you must affix a connection to a good Earth Ground prior to Premise entry or Bond to an existing one.