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.
Satellite Splitters Typically Pass from 950 to 2050 or 2150 MHz. and are used between the LNB (LNBF) and the Input of the Satellite Receivers. In this manner a Satellite Signal Feed from the Dish can be "Split" to feed multiple Receiver Units. Low Voltage is Present in this link between the LNB and Receiver and should be maintained and respected. With a 2 Receiver Setup, Voltage to the LNB typically would only be required from one or either of the Receivers. Some Splitters (HOLLAND) have diodes that eliminate the back-feeding of voltage back and forth between the Receivers, otherwise you may have to disable the Voltage eminating out through the "Input" port of one of the Receivers (this function is usually switchable for this purpose). With Multiple Receiver feeds in a "Head-End" scenario where receivers are dedicated to specific channels for mixing and carriage onto a Cable TV or Satellite Master Antenna System, the question of feeding Voltage back to the LNB is addressed with a separate power inserter for this purpose.
If you have Off-Air Antenna TV Signals mixed with the Satellite Signals, you will need "Wideband" Splitters that have a minmum start frequency of 50 MHz and again, pass up to 2050 or 2150 MHz. (depending on Service). Those Splitters that have a Start Frequency of below 40 MHz are used for carriage of both Satellite and Cable TV with Return Band two way services like Hi-Speed Internet Broadband Modems and Set Top Pay-per ViewTV Converters.
Conversely, regular Cable TV Antenna Signal Splitters have a start Frequency of 5, 40 or 50 MHz. and a Stop Frequency of 900 or 1000 MHz. (1 GHz.) You could utilize any of those Splitters for distribution use of the Output Signals of the Satellite Receivers to other TV Sets.
These 4-Way Satellite Splitters are typically the Part you would use to take One (1) LNB(F) Feed and "Split" it into Four (4) in order to present Signal to 4 Independant Receivers. Please be Sure to Select the Appropriate Device not just By Manufacturer and Price. But Rather, Consider the Specifics of Bandwidth, Packaging (Indoor vs. Outdoor), Insertion Loss, Powering Requirements Up/Down-Stream and the Overall Needs of the Final System You Wish to Create.
When Splitting the High Frequencies of Satellite TV Services to feed multiple Receivers, the Loss associated with the splitter may need to be compensated for with the use of an In-Line Satellite Drop Amplifier specific to this purpose and Frequency Range. Consider the need and review the "Satellite TV Amplifier" category for selection.
Also the issue of supplying Voltage back to the LNB(F) may be addressed more resolutely with the installation of a Power Supply and Power Inserter specific to the purpose. Consider the need and review the "DC Power Inserter" category for selection.
When Supplementing your Satellite TV Antenna Installation with additional Components, consider Grounding. Dual F Port Grounding Blocks specific for Grounding un-wanted Electrical Surges and Strikes away from the LNB(F), Satellite TV Receiver and TV Set(s) are available. See the "Drop Ground Blocks" Category. Consult your Local Building Code and NEC for guidance to Properly Grounding your HD TV Antenna, Satellite TV, Cable TV, WI-FI, Wireless Internet, Business Band, CB or Amateur Radio Antenna Installation.