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The Dish For Direct TV
To determine the different channels on a DirecTV Dish means discovering which frequencies arrive in the IRD (integrated receiver/decoder). The DirecTV Dish itself is constructed of a Satellite Dish (round or oval) and one, two or three LNBs (Low Nois
To determine the different channels on a DirecTV Dish means discovering which frequencies arrive in the IRD (integrated receiver/decoder). The DirecTV Dish itself is constructed of a Satellite Dish (round or oval) and one, two or three LNBs (Low Noise Block Converter). A DirecTV Dish single LNB is the device that receives satellite transmissions from only one geosynchroneous orbiting satellite in space. The DirecTV dish double LNB is able to intercept and process signals from two different satellites and triple LNB can receive signals from up to three different satellites simultaneously.
Satellite transmission is all about beaming information from long distances back and forth. The satellite dish antenna on the roof is pointing to the sky and the pointer on the dish is facing the DirecTv dish itself. The more distance traveled, the larger the area of the circle beam. A beam will only travel a certain distance and finally the signal looses power. In space, a signal should travel theoretically forever and this is why we have interference in the atmosphere, due to beams bouncing around in space.
Sunlight causes atmospheric interference. The Direct TV dish with one single LNB is designed to do the job of catching a signal as it bounces off a dish, from any area where the beams from the satellite hit that dish. The Direct TV dish must be aligned within the satellites broadcasting beam area and pointed in the correct direction. The beam signal will then bounce correctly and hit the LNB. Satellites stay up in space over the equator in geosynchronous orbit and point year round at one are on the earths surface. If the subscriber has a Direct TV double LNB, both of these will attract the beams from two different satellites from different angles.
When aligning the dish, the Direct TV signal will need to be pointed between the two orbiting satellites in order to receive data from both. When the user has Direct TV Dish Triple LNB, they are catching three different satellite beams from three different positions. A single beam can capture from 12-32 channels digitally. The more powerful the beam is, the more channels it can send. If the user has 250 channels, they will need to reach out to the other satellites carrying the transmission of all these channels. A DirectTV triple LNB receives three different signals from three different satellites in different positions in space. When this is the case, the Direct TV dish will be pointed to the middle satellite of three adjacent Direct TV satellites.
Depending on the subscribers need of programming, how many channels they want and how many channels are available will decide how many LNBs the subscriber needs. The DirecTV technician will install the Direct TV dish for free and, depending on the service purchased by the subscriber, will give the subscriber the proper Direct TV Dish at no additional cost as well. Direct TVs technical installation service will assist the subscriber in mounting and aligning the Direct TV dish as part of their subscription fee.
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Written by David Johnson. Find more information on Direct Satellite TV Deals as well as a Direct TV Deal
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