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Pictures of Members' Setups and general satellite
SMW OA 1600 dish
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<blockquote data-quote="a33" data-source="post: 988012" data-attributes="member: 332642"><p>In addition to this:</p><p></p><p>Remember that a circular dish has a radius of exactly twice the focal distance (r=2f; see my earlier post). This can be used to get an idea where the LNBs should be located, given the following notions:</p><p></p><p>Seen horizontally, ALL signals from satellites that go through the center of this circular form (so the point at distance 2f from the dish), come back from the dish in the direction of the circle center again (due to the 90 degrees, as mentioned above). Halfway between dish and circle center is the focal point for that satellite.</p><p></p><p>So if the satellites have an angledifference of x degrees in the horizontal plane <span style="font-size: 10px">(usually people use the azimuth-difference here, which has a similar value, though that is not the correct measurement I believe)</span>, the angledifference of the LNBs seen from the centerpoint of the circular form <u>should also be x degrees</u>.</p><p></p><p></p><p>Hope I explained this for everybody's understanding.....</p><p></p><p>greetz,</p><p>A33</p></blockquote><p></p>
[QUOTE="a33, post: 988012, member: 332642"] In addition to this: Remember that a circular dish has a radius of exactly twice the focal distance (r=2f; see my earlier post). This can be used to get an idea where the LNBs should be located, given the following notions: Seen horizontally, ALL signals from satellites that go through the center of this circular form (so the point at distance 2f from the dish), come back from the dish in the direction of the circle center again (due to the 90 degrees, as mentioned above). Halfway between dish and circle center is the focal point for that satellite. So if the satellites have an angledifference of x degrees in the horizontal plane [SIZE=2](usually people use the azimuth-difference here, which has a similar value, though that is not the correct measurement I believe)[/SIZE], the angledifference of the LNBs seen from the centerpoint of the circular form [U]should also be x degrees[/U]. Hope I explained this for everybody's understanding..... greetz, A33 [/QUOTE]
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Pictures of Members' Setups and general satellite
SMW OA 1600 dish
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