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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Muti LNB Holder
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<blockquote data-quote="Terryl" data-source="post: 1133968" data-attributes="member: 369937"><p>One thing you need to understand, there is what is called ""receive beamwidth"" on a satellite dish, some are only designed to receive one satellite, these dishes are round in shape, they have a very narrow focal area. (10 degrees, +5 -5 off centre)</p><p></p><p>Other types of dishes have a slight oval shape and are wider side to side, these are called elliptical dishes, they are designed to receive more then one satellite at a time as they have a wider receive beamwidth. (20 to 55 degrees depending on the make)</p><p></p><p>Putting 5 LNB's out in front of a narrow beam with dish may prove to be futile as the outside LNB's will be starving for signal. (or getting non at all)</p><p></p><p>Also the mount for these LNB's needs to be able to be skewed (tilted) as your dish looks to not be able to be skewed or tilted to align it to the belt of satellites at your location, the LNB in your picture looks to be skewed, to align it to this belt. (The belt is called the Clark belt pertaining to all the geosynchronous satellites in orbit)</p><p></p><p>To find out how wide a receive beamwidth dish you would need is to take the furthest West satellite's location you want to receive and deduct the furthest East satellites location, the result is how much beamwidth you would need on a dish.</p><p></p><p>I would check the specifications on the dish you have to see if it's possible to do what your trying to do.</p><p></p><p>One last thing, what satellites are you trying for??</p></blockquote><p></p>
[QUOTE="Terryl, post: 1133968, member: 369937"] One thing you need to understand, there is what is called ""receive beamwidth"" on a satellite dish, some are only designed to receive one satellite, these dishes are round in shape, they have a very narrow focal area. (10 degrees, +5 -5 off centre) Other types of dishes have a slight oval shape and are wider side to side, these are called elliptical dishes, they are designed to receive more then one satellite at a time as they have a wider receive beamwidth. (20 to 55 degrees depending on the make) Putting 5 LNB's out in front of a narrow beam with dish may prove to be futile as the outside LNB's will be starving for signal. (or getting non at all) Also the mount for these LNB's needs to be able to be skewed (tilted) as your dish looks to not be able to be skewed or tilted to align it to the belt of satellites at your location, the LNB in your picture looks to be skewed, to align it to this belt. (The belt is called the Clark belt pertaining to all the geosynchronous satellites in orbit) To find out how wide a receive beamwidth dish you would need is to take the furthest West satellite's location you want to receive and deduct the furthest East satellites location, the result is how much beamwidth you would need on a dish. I would check the specifications on the dish you have to see if it's possible to do what your trying to do. One last thing, what satellites are you trying for?? [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Muti LNB Holder
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