3 Star Inc
Made in the USA!
The EZ 70 Roof Vent Pipe Antenna Mast Mounting Bracket is for Mounting Satellite Dish and Off Air TV Antenna to Vent Pipes from 2.5" to 3.75: inches in Outside Diameter. Mast Mount with Hardware (Mast Not Included).
The Vent Pipe used for this attachment must be of Sturdy Stuff (Steel, Ceramic or Equivalent... NOT PVC or Aluminum Foil!), otherwize you will witness a Whole Lot of Shakin' Goin' On with your TV Antenna and Mast! Great for Antenna Masts from 1 to 1.75 inches in Diameter. 1.25 inch diameter Masts are the Standard for Off Air TV UHF/VHF/FM Antenna. Though most TV antennas can be mounted to 1.75 or even 2.00 inch Diameter Masts. Keep the Mast length as Short as Possible, and limit the Dish Size to 20" or less. If Mounting a Off Air TV Antenna, the size of the Antenna would be limited by the amount of Cantilever achieved to offset the torque generated by wind load (increase the distance between the 2 clamps as antenna size goes up!). The Standard is a 1.66 or 1-5/8 inches Diameter Pipe size in most Universal Mounts for Satellite Dishes. Whether Aftermarket or Service Provider supplied, this mount can accomodate even large Dishes for DirecTV (1 and 3 LNB only, the World Direct International uses 1.75" DIA Mast and the Ka/Ku HD Band uses 2" DIA Mast), Dish Network 500+/1000+, Dish 500 Plus, Dish 1000 Plus, DishPLUS, Dish Network TurboHD 1000.4, Dish 1000.2, Dish Network 1000.4, DishPro, 105 SuperDISH, 121 SuperDISH, EchoStar Technologies Corporation, most FTA Free to Air and DBS Direct Broadcast Satellite Dishes. In addition, it can be used in mounting some smaller PCS, Cellular, Broadband Wireless, Wireless Internet and Two Way Antennas.
In-Line Attenuators that can Drop Signal Down to Acceptable Levels and Force Impedance match. Some are Power Passing. Most Attenuators Now-a-Days are made of Integrated Circuit Equivalents of Resistors and Capacitors that made up the RC Networks of Yesterdays Pads. Because of this Fact, You will Find that the Actual Loss may vary across the Bandwidth for different reasons and values as compared to Yester-Years Models. I have always found it best to add Attenuation in Increments until reaching the appropriate amount, and then substituting for the Total Value with ONE Pad of equal value. Multiple Attenuators in Series may have Un-predictable and Un-controllable Affects upon each other in Reactance, and are Prone to RF Leakage as Stress upon the Connectors may Compromise the Shield Integrity.