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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
2D in Cyprus - Frassle
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<blockquote data-quote="Likvid" data-source="post: 24855" data-attributes="member: 176379"><p>Also i would recommend you choose the dish with the lowest F/D ratio, i love dishes with ratios of 0.30 and lower, that makes low-noise LNB work much better and you get much better C/N with a deep dish than a dish with a F/D of say 0.40.</p><p></p><p></p><p>I know DH have dishes with 0.30 and lower......</p><p></p><p>Problem is that you need a good feedhorn, not many makes good feedhorns for these dishes.</p><p></p><p>I recommend Seavey Engineering, they makes no doubt the best feeds for deep dishes.</p><p></p><p>I experimented about 10 years ago when i worked with dishes, the difference i got.</p><p></p><p>I had a 3.0 meter dish with F/D of 0.28 and a 3.0 meter with 0.38</p><p></p><p>First i tried a Chaparall Feed with the adjustable feedrings, it was a disaster on the deep dish, however it was marginally better than a standard feed.</p><p></p><p>When i got the Seavey feed for the deep dish, it was alot better C/N than with the other dish.</p><p></p><p>The result is that a low-noise LNB around 0.5dB works much better with a real deep dish with f/d of 0.30 and lower.</p></blockquote><p></p>
[QUOTE="Likvid, post: 24855, member: 176379"] Also i would recommend you choose the dish with the lowest F/D ratio, i love dishes with ratios of 0.30 and lower, that makes low-noise LNB work much better and you get much better C/N with a deep dish than a dish with a F/D of say 0.40. I know DH have dishes with 0.30 and lower...... Problem is that you need a good feedhorn, not many makes good feedhorns for these dishes. I recommend Seavey Engineering, they makes no doubt the best feeds for deep dishes. I experimented about 10 years ago when i worked with dishes, the difference i got. I had a 3.0 meter dish with F/D of 0.28 and a 3.0 meter with 0.38 First i tried a Chaparall Feed with the adjustable feedrings, it was a disaster on the deep dish, however it was marginally better than a standard feed. When i got the Seavey feed for the deep dish, it was alot better C/N than with the other dish. The result is that a low-noise LNB around 0.5dB works much better with a real deep dish with f/d of 0.30 and lower. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
2D in Cyprus - Frassle
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