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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Dish Setup Guides, Information threads and FAQs
Antenna's focal point - "le point G"
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<blockquote data-quote="RimaNTSS" data-source="post: 897753" data-attributes="member: 312276"><p>And it is needless to say that points ABCD should be marked not on the edge of the dish but were working surface starts. </p><p>If we draw line from E perpendicular to surface of antenna we can find point H. Some people think that LNB should be pointed to this point, but it is very wrong. H is not mysterious " le point G". H is not deepest antenna point as well, it is just geometrical center. </p><p>So, now we can start measuring. And we need to do only 3 measurements, all in mm. I will measure my antenna</p><p>- AB - 990</p><p>- CD- 910</p><p>- EH- 80 (ish, it is not easy to measure this distance).</p><p>EH should be measured as precisely as possible, with precision up to 0,1mm. To do it I got one instrument from PRC.</p><p>[ATTACH]68013[/ATTACH] [ATTACH]68012[/ATTACH]</p></blockquote><p></p>
[QUOTE="RimaNTSS, post: 897753, member: 312276"] And it is needless to say that points ABCD should be marked not on the edge of the dish but were working surface starts. If we draw line from E perpendicular to surface of antenna we can find point H. Some people think that LNB should be pointed to this point, but it is very wrong. H is not mysterious " le point G". H is not deepest antenna point as well, it is just geometrical center. So, now we can start measuring. And we need to do only 3 measurements, all in mm. I will measure my antenna - AB - 990 - CD- 910 - EH- 80 (ish, it is not easy to measure this distance). EH should be measured as precisely as possible, with precision up to 0,1mm. To do it I got one instrument from PRC. [ATTACH]68013[/ATTACH] [ATTACH]68012[/ATTACH] [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Dish Setup Guides, Information threads and FAQs
Antenna's focal point - "le point G"
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