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Sky Digital BSkyB, Freesat & Saorsat support forum
Freesat digital TV support forum
Freesat advice Cologne Germany
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<blockquote data-quote="Topper" data-source="post: 566720" data-attributes="member: 186250"><p>Robbo is referring to firstly the in and out, the neck of the holder is narrower than the neck of the lnb thus allowing backward and forward movement to allow you to obtain the best focus of signal on the lnb. In the same way as a torch beam would be concentrated on the lnb from the front assuming the dish was a mirror</p><p>The skew has to be altered according to the satellite you are aiming at. If you were aiming at your due south satellite at the top of the arc for where you are, you would have zero skew. Any satellite East of that is rotated slightly clockwise looking at the dish from the front, so the amount of skew increases the further east the satellite is you are viewing. The same applies to the westerly satellites, only the skew is anti-clockwise looking from the front of the dish and again increasing. The lnb is actually rotated in the holder by those few degrees. On a motorsed system either horizon to horizon or a polar mount, the skew is achieved mechanically and automatically by clever geometry of the mount or motor</p></blockquote><p></p>
[QUOTE="Topper, post: 566720, member: 186250"] Robbo is referring to firstly the in and out, the neck of the holder is narrower than the neck of the lnb thus allowing backward and forward movement to allow you to obtain the best focus of signal on the lnb. In the same way as a torch beam would be concentrated on the lnb from the front assuming the dish was a mirror The skew has to be altered according to the satellite you are aiming at. If you were aiming at your due south satellite at the top of the arc for where you are, you would have zero skew. Any satellite East of that is rotated slightly clockwise looking at the dish from the front, so the amount of skew increases the further east the satellite is you are viewing. The same applies to the westerly satellites, only the skew is anti-clockwise looking from the front of the dish and again increasing. The lnb is actually rotated in the holder by those few degrees. On a motorsed system either horizon to horizon or a polar mount, the skew is achieved mechanically and automatically by clever geometry of the mount or motor [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Freesat digital TV support forum
Freesat advice Cologne Germany
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