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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Tower & Site Accessories
ROHN offers Side Arms , Leg Dish Mounts , Face Dish Mounts , Waveguide Brackets & Climbing Ladders to meet a variety of communication tower needs such as Cellular, PCS, Wireless Cable, Microwave, Wireless Internet, WiFi Hot Spots, DBS, MDS, MMDS and UHF/VHF reception.
Designed and engineered to handle the job of getting above ground interference, each tower mount has been researched and developed to serve a specific purpose.
With professionally engineered construction, you can be assured you're getting a virtually maintenance-free product built to the highest standards. And because our mounts are hot-dip galvanized after fabrication, our mounts won't rust.
Additional Features & Notes include :
- Offer both Straight/ Tapered Mounts
- Galvanized for corrosion protection
- Custom side arms and tiebacks available
- Check for leg size
- Quickly shipped and ;quickly assembled
- Minimum bolted connections
- Includes all hardware to attach mounts
- Some models are UPS shippable
