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Sky Digital BSkyB, Freesat & Saorsat support forum
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Why only uk uses oval shaped mesh dishes?
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<blockquote data-quote="Channel Hopper" data-source="post: 1079991" data-attributes="member: 175144"><p>I thnk this has been answered before on the forum</p><p></p><p>The shorter vertical height of the elliptical dish described means a greater beamwidth in the vertical plane, and so noise comes in with a matched conical feed sited at the correct focal point. The feed is elliptical to assist with narrowing this out.</p><p></p><p>If you look at a professional elliptical dish feed (for example for the Prodelin 78/95s) their matched feed is similar, (though highly rectangular to assist in cross polarization rejection to keep in with the satellite uplink restrictions.</p><p></p><p>[URL unfurl="true"]https://www.ebay.ca/itm/ANTENNA-FLYAWAY-FEED-PRODLIN-GENERAL-DYNAMICS-95-METER-ELLIPTICAL-VSAT-/202398336537[/URL]</p></blockquote><p></p>
[QUOTE="Channel Hopper, post: 1079991, member: 175144"] I thnk this has been answered before on the forum The shorter vertical height of the elliptical dish described means a greater beamwidth in the vertical plane, and so noise comes in with a matched conical feed sited at the correct focal point. The feed is elliptical to assist with narrowing this out. If you look at a professional elliptical dish feed (for example for the Prodelin 78/95s) their matched feed is similar, (though highly rectangular to assist in cross polarization rejection to keep in with the satellite uplink restrictions. [URL unfurl="true"]https://www.ebay.ca/itm/ANTENNA-FLYAWAY-FEED-PRODLIN-GENERAL-DYNAMICS-95-METER-ELLIPTICAL-VSAT-/202398336537[/URL] [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
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Why only uk uses oval shaped mesh dishes?
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