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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Is a satellite internet dish different?
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<blockquote data-quote="a33" data-source="post: 1159420" data-attributes="member: 332642"><p>I'm not sure where I wrote that? (And if I would still use the same calculation?)</p><p></p><p>My most recent approximation for the calculation of distance between LNBs is described in this "post": </p><p>[URL unfurl="true"]https://ftapinamar.blogspot.com/2023/04/calculo-rapido-de-caronas-3.html?showComment=1682880187330#c6267156412265887602[/URL]</p><p></p><p>I never tested if 1.1 is indeed the best approximation for 1/BDF. BDF in literature is usually given as about 0.9 for offset satellite dishes, but I've never been able to reproduce that number from the mentioned equations, or seen that value tested in practice.</p><p>For effective focal distance I nowadays use distance from focus to deepest point of the dish (so not to the G-spot, anymore).</p><p></p><p>Nice that you seem to have "studied" these posts! There aren't many that do or have done that, from what I've noticed.</p><p></p><p>BTW. The calculated multifeed skew is, as far as my knowlegde goes, an exact and truthful outcome. When possible, I would first set that angle, and then "slide" the byrider LNB along that angle, to the optimal reception position.</p><p></p><p>Greetz,</p><p>A33</p></blockquote><p></p>
[QUOTE="a33, post: 1159420, member: 332642"] I'm not sure where I wrote that? (And if I would still use the same calculation?) My most recent approximation for the calculation of distance between LNBs is described in this "post": [URL unfurl="true"]https://ftapinamar.blogspot.com/2023/04/calculo-rapido-de-caronas-3.html?showComment=1682880187330#c6267156412265887602[/URL] I never tested if 1.1 is indeed the best approximation for 1/BDF. BDF in literature is usually given as about 0.9 for offset satellite dishes, but I've never been able to reproduce that number from the mentioned equations, or seen that value tested in practice. For effective focal distance I nowadays use distance from focus to deepest point of the dish (so not to the G-spot, anymore). Nice that you seem to have "studied" these posts! There aren't many that do or have done that, from what I've noticed. BTW. The calculated multifeed skew is, as far as my knowlegde goes, an exact and truthful outcome. When possible, I would first set that angle, and then "slide" the byrider LNB along that angle, to the optimal reception position. Greetz, A33 [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Is a satellite internet dish different?
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