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<blockquote data-quote="Satcom1" data-source="post: 604345" data-attributes="member: 302061">:-worshipThe focal point for best signal is typically just inside the LNBF. The front section of a KU lnbf has a conical Scalar ring and so the opening to the lnbf wave guide is beyond that. Roughly 1/2&quot; to 3/4&quot; inside lens cap.Your suggestion about the Resin Spray seems perfect. Also flipping the dish over and laying up Fiberglas for strength.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool&nbsp; &nbsp; :cool:" loading="lazy" data-shortname=":cool:" />If the paint does not work for you, then your idea of aluminum foil will creat a solar reflective surface as well and make focusing your lnbf easier. I also like Aluminum window screen whch you can by 4' X 4' at ACE. You would have to match the suns elevation and be very careful not to burn your lnbf. If you have an empty tomato paste can you can replace the lnbf with it If you go to the NOAA Solar Calculater website you can get all the info. This will also set your True South. You can always spray paint the foil after tunning. Good Luck</blockquote>

[QUOTE="Satcom1, post: 604345, member: 302061"] :-worship The focal point for best signal is typically just inside the LNBF. The front section of a KU lnbf has a conical Scalar ring and so the opening to the lnbf wave guide is beyond that. Roughly 1/2" to 3/4" inside lens cap. Your suggestion about the Resin Spray seems perfect. Also flipping the dish over and laying up Fiberglas for strength.:cool: If the paint does not work for you, then your idea of aluminum foil will creat a solar reflective surface as well and make focusing your lnbf easier. I also like Aluminum window screen whch you can by 4' X 4' at ACE. You would have to match the suns elevation and be very careful not to burn your lnbf. If you have an empty tomato paste can you can replace the lnbf with it If you go to the NOAA Solar Calculater website you can get all the info. This will also set your True South. You can always spray paint the foil after tunning. Good Luck [/QUOTE]

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