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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
My Channel Master 1.8 project.
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<blockquote data-quote="a33" data-source="post: 1127320" data-attributes="member: 332642"><p>By the way: the rotation angle with the highest accuracy can be calculated exact, as the outcome in degrees of this equation:</p><p><em>angle.with.the.highest.accuracy = arccos ( triangle.sidelength.ratio ); </em></p><p>where this triangle.sidelength.ratio is defined as ( <em>length.of.small.triangle.side / length.of.large.triangle.side </em>).</p><p></p><p>I added the exact angles that correspond to the given ratios, in my quote above.</p><p></p><p>Based on these calculations, I would shift the maximum accuracy zone (that has the most inches or centimeters per degree) away from the fully retracted zone, and more towards the extended zone (and so spread the accuracy more evenly over the received arc), by choosing a ratio of for instance 1 : 2.</p><p>Unless, of course, there might be other reasons that I am not aware of, to not do that.</p><p>I have no actuator setup myself, so I might oversee something.</p><p></p><p>greetz,</p><p>A33</p></blockquote><p></p>
[QUOTE="a33, post: 1127320, member: 332642"] By the way: the rotation angle with the highest accuracy can be calculated exact, as the outcome in degrees of this equation: [I]angle.with.the.highest.accuracy = arccos ( triangle.sidelength.ratio ); [/I] where this triangle.sidelength.ratio is defined as ( [I]length.of.small.triangle.side / length.of.large.triangle.side [/I]). I added the exact angles that correspond to the given ratios, in my quote above. Based on these calculations, I would shift the maximum accuracy zone (that has the most inches or centimeters per degree) away from the fully retracted zone, and more towards the extended zone (and so spread the accuracy more evenly over the received arc), by choosing a ratio of for instance 1 : 2. Unless, of course, there might be other reasons that I am not aware of, to not do that. I have no actuator setup myself, so I might oversee something. greetz, A33 [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
My Channel Master 1.8 project.
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