ROHN WM18D Antenna Wall Mount 18 inch Y Style Double Brackets for 1.25 to 2.75" OD Mast
ROHN
Made in the USA!
The ROHN WM18D is a Hot Dip Galvanized 14 Gauge Steel Heavy Duty Bracket Set of (2) Double "Y" Style Brackets with Anti-Twist Feature, One with a Vertical Brace Strut on the Bottom Bracket, with Hardware Included for an 18 inch Standoff Wall Support of Light to Medium Duty Antennas on Mast Poles from 5 to 10 feet long and from 1.25 to 2.75 inches in Outside Diameter for Off-air and OTA TV, UHF/VHF Radio, Remote Telemetry Control and Monitoring Stations, Cellular Date Gateways, WiFi, Wireless Internet, Receivers, Boosters and Repeaters.(Mast Not Included)
These mast mountings are typical and generally require the cantilever distance between the mounts be one quarter (1/4) to one third (1/3) of the mast length depending on Wind Load, starting from the bottom with 2 foot between brackets being a minimum distance. All Masts greater than ten feet in length, and/or 2 inches or greater in O.D. should be based upon and from the ground in rising up to the desired height.
Also for Telescopic Mast Poles comprised of 1.25", 1.50", 1.75", 2.00" and 2.25" Tubes nested together and then extended, these wall mounts can supplement structural support but are not designed to take the place of a Base in Supporting the weight of the Mast off the ground or guying. Be sure and check that the Tube segments you wish to wall mount will fit within the Outside Diameter Window specified that the Brackets will accommodate. Set screw installation may require some field drilling.
Manufacturers recommend that ALL masts above 10 feet from their uppermost support be Guyed
With more height in your installation, Grounding/Bonding is a recommended consideration.
RG11 Direct Burial for Underground Use
This RG11 Cable Product is designed for Underground and Direct Burial Usage (Inside a Conduit or Out). It Features a Polyethylene Jacket with a Flooding Film or Jelly Compound contained within the Coaxial Cable Jacket, between it and the last layer of shield. This Moisture Barrier is present really as fall-back measure should the integrity of the Sheath fail. At that point the compound will ooze to fill the void as to displace accumulated water, or the film will simply repel the vapor from reacting with the Aluminum in electrolysis or oxidation. RG11 (RG-11) is to 75 Ohm as RG213 or RG214 is to 50 Ohm cable. RG11 Cable featuring 60% Braided Shield is comprised of an Aluminum Foil bonded to the Foam Dielectric with Aluminum Braided Shield with 60% coverage. Quad Shield RG11 would denote alternating Aluminum Foil and Aluminum Braided Shield Layers, starting with the Bonded Foil Layer around the Foam Dielectric, with the better Quad Shield having 2 Layers of Braided Aluminum Shield, one of 60% and the 2nd at 40%. Tri-Shield RG11 will have 77% Braided Aluminum Shield Coverage Between 2 Layers of Aluminum Foil Shield, the 1st Foil Layer being Bonded to the Foam Dielectric. RG11 is the lowest loss Flexible Braided Shield Drop cable Commercially Manufactured for Satellite TV, TV Antenna and Cable TV usage. Use for distances over 150 feet or when every dB counts. For Cable with less loss than RG11, one would then have to avail themselves to Hardline Coaxial with a Single Solid Shield (typically Aluminum) that is pricey, but delivers commensurate Results for the Money. Most all RG11 Manufactured uses Aluminum Braided Shield, the difference of note being the amount of Aluminum Braid Coverage and the composition of the Center Conductor; Solid Copper vs. Copper Clad Steel. Copper Clad Steel will suffice in almost any utilization scenario, however most Satellite TV Operating companies will require Solid Copper Center Conductor to be used by their respective Sub-Contractor Installers for Maintenance and Warranty issues. This is due to the DC Voltage component being fed from the Receiver back to, and Powering the LNB(f)s mounted on the Satellite Dish. Unless the run is extremely long and the connectors applied are of dubious Quality, the DC Loop Resistance difference between Solid Bare Copper and Copper Clad Steel is negligible.
