3 Star Inc FRM-HDW Non-Penetrating Flat Roof Mount BASE ONLY for 1.50"-2.25 inch OD Antenna Mast
3 Star Inc
Made in the USA!
The FRM-HDW is a Base Only, User Supplied Mast, Non-Penetrating Roof Antenna Mount and is Ideal for Light Off-Air TV, Cellular, Wireless Internet, SCADA, CCTV, Telemetry and Small Diameter Narrow Beam-width Antenna mounting and can be used in Non-Penetrating, Guyed or Bolt Mount Flat Roof or Ground level configurations. The Assembly comes with a GR-3 Universal Clamp that accommodates masts from 1.5 to 2.25 inch OD and set screws to secure. The mast You supply will need to be drilled to accept a 1/4-20 carriage bolt that secures the mast bottom to the Frame Base. The FRM Base provides a stable, temporary or semi‑permanent mounting solution that avoids roof membrane penetrations, is constructed of pre-galvanized 12 Gauge steel and typically uses 8 standard (8 x 8 x 16 inch) concrete blocks as Ballast on a 35.5 x 35.5 inch Rectangular Base Frame. This Order is for the Base Frame Only (No Mast, Cinder Blocks or Mat Supplied). Bring your own Mast and drill to fit!
Height and Antenna Loading capability are dependent upon ballast weight to counter the tip-over moment of the Windspeed rating desired. In addition to the Windspeed Loading Data found under the "Specification" tab (if Available), You need to Consult an Engineer to determine the Building Code Requirements and Load Bearing Capacity of the roof structure where you will be installing this mount. It is Important to choose a Mount and Mounting Location with a Picture of the Finished Installation in Mind. Be Sure to First select a location that lends itself to applying a Load without Compromising the Integrity of the Material you place the mount on top of; i.e. roof membrane, covering, decorative cover, etc., or the Structural Members beneath. 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 and thus, Wind-load does increase. As the height of the mast increases from Its last attached point on the structure, the torque applied in cantilever towards the tip-over moment also increases with Antenna off-center Weight and Wind-Load EPA (Effective Projected Area), requiring a more substantive Downward Force and/or Load Dissipation; i.e. supplemental Down-guys may be required as to keep ballast weight within Load-bearing capacity. Keep the Distance Minimal from the Antenna to the Equipment you feed, as to minimize loss and the need for Amplification.
A Retention Tether SCK150 (Safety Cable Kit) is required for Commercial Installations to mitigate Loss and Damage to Property, Further, the FRM-PAD or FRM-MAT is recommended for all installations to prevent slippage, distribute weight more evenly and prevent damage to the roof surface
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Pipe to Pipe or Mast Pole to Tower Leg Crossover Clamp Sets and 90° Perpendicular Mounts
Crossover Mounts accommodating 2-3/8" OD through 4-1/2" OD Mast Tube Pipe are HDG (Hot Dipped Galvanized).
Crossover Mounts accommodating 1.00" OD through 2.25" OD Mast Tube are of a Pre-Galvanized Plated Finish.
All are used to Fixate and Hold (2) poles to cross perpendicularly, one to the other, preferably from an integral Structure Member to another, or even Freestanding. An Example would be attaching a Vertical Mast Pole Tube to an existing Horizontal Welded Guard Rail at two levels (Top and Mid rail) utilizing (2) Crossovers as to maintain a Cantilever against Weight and Wind Loading on the Mast being installed.
If You need to attach a Vertically Running Mast Pole to the Vertical Post, please refer to the "Pole to Pole Mount" Category in this section!
You can increase the amount of strength and holding power by utilizing multiple mounts space out over the length of the Mounting Pipe. There are many reasons you might need to use these mounts and they mostly involve the need to attach a pole to another pole to either extend the original or simply as an attachment point for prime placement location.
Both Pole to Pole and Crossover Mounts are designed to support most WiFi , PCS, Cellular, SCADA, TV and Other Light to Midweight antennas. Consult a Structural Engineer if meeting Wind Speed survivability ratings is necessary.
All of Our Mounts in this Category can easily be shipped UPS, depending on QTY Dimensional Weight.
