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DISH SETUP: Single sat, Multi-Sat & Motorised
Dish Setup Guides, Information threads and FAQs
Calculation of the focal length of an offset satellite dish antenna, Revisited
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<blockquote data-quote="a33" data-source="post: 1124798" data-attributes="member: 332642"><p>Yes, that is a nice curiosity! </p><p>With me it started with wanting to know the difference between spherical and paraboloidal dishes. <img src="https://www.satellites.co.uk/styles/default/xenforo/smilies/smile.png" class="smilie" loading="lazy" alt=":)" title="Smile :)" data-shortname=":)" /></p><p>Some discoveries of parabolic forms followed.</p><p>Now I'm having multiple ways, to calculate specs for parabolic dishes: flatfaced, non-flatfaced, and multifeed dishes; PFdishes with a hole in the center (so that depth at the center cannot be measured); ....</p><p></p><p></p><p>As you had found that drawing, I wonder if the formulae for d1 and d2 were there, too?</p><p>That is because I've seen that exact picture in the (french) offset_v1_0.xls file by F6AGR, on the base of the articles by F4BAY in about the year 2000....</p><p></p><p>greetz,</p><p>A33</p></blockquote><p></p>
[QUOTE="a33, post: 1124798, member: 332642"] Yes, that is a nice curiosity! With me it started with wanting to know the difference between spherical and paraboloidal dishes. :) Some discoveries of parabolic forms followed. Now I'm having multiple ways, to calculate specs for parabolic dishes: flatfaced, non-flatfaced, and multifeed dishes; PFdishes with a hole in the center (so that depth at the center cannot be measured); .... As you had found that drawing, I wonder if the formulae for d1 and d2 were there, too? That is because I've seen that exact picture in the (french) offset_v1_0.xls file by F6AGR, on the base of the articles by F4BAY in about the year 2000.... greetz, A33 [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Dish Setup Guides, Information threads and FAQs
Calculation of the focal length of an offset satellite dish antenna, Revisited
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