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.
RG-59 is Flexible Coaxial Drop Cable used Primarily Today for CCTV (Closed Circuit TV) Applications. In the Early Days of Cable TV, 300 Ohm twin lead was used. When the transmission lines used changed to 75 Ohm Coaxial Cable, RG59 was introduced as the premise distribution cable of choice, installed in many Homes and Apartments that is still in use today. For the Higher Frequencies and Bandwidthes of Modern Cable TV design, RG59 is very lossy and should be replaced with a lower loss cable (like RG6) at any opportunity. We Sell RG59 Connectors for CCTV and Cable TV Antenna applications as there is still plenty of it still left in service. Modern Manufacture of RG59 sees almost every variety that you would find in RG6, though there is much, much less of it available. Quad Shield versions with Silver Clad center conductor are used in Head End wiring. 95% braid coverage suitable for use in CCTV willl have Solid Copper center conductor and Copper or Copper Clad Aluminum Braided Shield. Cable of this manufacture can be rated up to 3 GHz in bandwidth, but its loss usually precludes its use in anything other than CCTV Applications. Solid Copper center conductor is not needed for the carriage of Higher Frequencies, but rather for the lower loop resistance characteristics preferable for DC Voltage power into the Camera, and the Lower RF Frequencies found in Baseband Video out of the Camera. Lower frequency use such as this sees loss comparable to RG6 as the two are indistiguishable in this range. RG59 is smaller, more flexible, and easier to post-wire install. Solid Copper or Copper Clad Aluminum Shield maximizes Shield Integrity, maximizing rejection of unwanted interfering Signals.
The most Popular Connector Series from Manufacturers like PCT, PPC, F-Conn, Thomas and Betts, Holland Electronics, Apica and Digicon offered in Legacy Hex Crimp styles as well as the Newer Radial Compression formats. Be Sure and match Connectors to their respective Crimping Tools by Manufacturer Spec. Sheet for Hex Diameter size or Compression length. Coaxial Cable Connectors should be weather protected in outdoor use, and some connectors provide extra moisture migration protection when compared to others. Though the economics of Old school Hex Crimp connectors and Tools may be attractive at first, over the long haul, compression connectors offer greater Shield Connection integrity, Bandwidth, Interference Rejection and Impedance matching when compared to their Hex Crimp counterparts. Whenever possible, upgrade Coaxial Cable, Connectors, Splitters and Amplifiers to ensure compliance to the latest specifications and formats.
