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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
How can I get a signal?
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<blockquote data-quote="lazydave" data-source="post: 49394" data-attributes="member: 179033"><p>Remember that the (offset) dish is a kind of "mirror" with the LNB as the "eye". Although the dish is "pointing" at one angle from the horison, the angle at which it is actually "looking" (= elevation) is higher. How much higher? Well, the angle between the LNB arm and a line going straight into the middle of the dish (i.e. where the dish is "pointing") is the same as the angle between where the dish is "pointing" and where it is "looking". </p><p></p><p>Doh ;) .... Is that confusing enough? </p><p></p><p>On a lot of dishes there are marks on the side where you can make up/down adjustments that indicate what your elevation angle is, assuming your pole is really vertical. Don't have a minidish, so I don't know if it has these marks.</p></blockquote><p></p>
[QUOTE="lazydave, post: 49394, member: 179033"] Remember that the (offset) dish is a kind of "mirror" with the LNB as the "eye". Although the dish is "pointing" at one angle from the horison, the angle at which it is actually "looking" (= elevation) is higher. How much higher? Well, the angle between the LNB arm and a line going straight into the middle of the dish (i.e. where the dish is "pointing") is the same as the angle between where the dish is "pointing" and where it is "looking". Doh ;) .... Is that confusing enough? On a lot of dishes there are marks on the side where you can make up/down adjustments that indicate what your elevation angle is, assuming your pole is really vertical. Don't have a minidish, so I don't know if it has these marks. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
How can I get a signal?
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