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DISH SETUP: Single sat, Multi-Sat & Motorised
Design for a Positioner with DiSEqC Decoder
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<blockquote data-quote="a33" data-source="post: 1089546" data-attributes="member: 332642"><p>I'm not sure if we are talking about the same thing?</p><p></p><p>You write about offset a and offset b. </p><p>I was taking only one offset measure there: the hypothenusa from those two. That is, in my drawing, A-BB (Axis to BottomBolt).</p><p>In the mount design you can place the bottom bolt anywhere you like. That is even practical, when you want to reach extreme sats east, or west, and arrive at boundaries of the rotation range of the mount+actuator.</p><p>So the bottom bolt doesn't need to be opposite of the true south/north, and there is no reason to measure offset a and offset b separately.</p><p></p><p>With my B-BB I was referring to only the actuator clamp. </p><p>When the actuator is extended, distances T-B and T-BB will be almost identical.</p><p>When it is retracted, TB will be clearly a bit shorter than T-BB (T-BB being the hypothenusa).</p><p>When every pulse counts, in dish rotation accuracy, and you can just program it in, it would be foolish to neglect it, I would think.</p><p></p><p>Greetz,</p><p>A33</p></blockquote><p></p>
[QUOTE="a33, post: 1089546, member: 332642"] I'm not sure if we are talking about the same thing? You write about offset a and offset b. I was taking only one offset measure there: the hypothenusa from those two. That is, in my drawing, A-BB (Axis to BottomBolt). In the mount design you can place the bottom bolt anywhere you like. That is even practical, when you want to reach extreme sats east, or west, and arrive at boundaries of the rotation range of the mount+actuator. So the bottom bolt doesn't need to be opposite of the true south/north, and there is no reason to measure offset a and offset b separately. With my B-BB I was referring to only the actuator clamp. When the actuator is extended, distances T-B and T-BB will be almost identical. When it is retracted, TB will be clearly a bit shorter than T-BB (T-BB being the hypothenusa). When every pulse counts, in dish rotation accuracy, and you can just program it in, it would be foolish to neglect it, I would think. Greetz, A33 [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Design for a Positioner with DiSEqC Decoder
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