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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Some definite info on the BBC channels moving off 1N
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<blockquote data-quote="avionista" data-source="post: 827682" data-attributes="member: 392924"><p>Hi Terry:</p><p></p><p>Thanks for your reply. The large foldable reflectors on 1N are indeed 2.6m in diameter and it is reasonable to assume that those on 2F will be the same size. However, Astrium state that both the foldable reflectors and the gregorian sub-reflectors are 'multi-contoured'. It is possible (likely?) that only a portion of the main reflector is actually illuminated when producing the UK spot beam and we have no way of modelling the precise effects of the contouring on the resulting beam shape. The footprint simulator can only give us a general idea of the spot beam shape.</p></blockquote><p></p>
[QUOTE="avionista, post: 827682, member: 392924"] Hi Terry: Thanks for your reply. The large foldable reflectors on 1N are indeed 2.6m in diameter and it is reasonable to assume that those on 2F will be the same size. However, Astrium state that both the foldable reflectors and the gregorian sub-reflectors are 'multi-contoured'. It is possible (likely?) that only a portion of the main reflector is actually illuminated when producing the UK spot beam and we have no way of modelling the precise effects of the contouring on the resulting beam shape. The footprint simulator can only give us a general idea of the spot beam shape. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Some definite info on the BBC channels moving off 1N
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