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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Offset v prime focus chat
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<blockquote data-quote="joddle" data-source="post: 945964" data-attributes="member: 247983"><p>I often wondered about the differences between PF and offset - to me the offset seems if could induce more phase shift problems as it means that although a circle is presented to the signal, the differences in the distance the signal travels from the reflective surface of the dish to the LNB must be very much greater from the top of the dish that at the bottom and that difference is more than would be experienced in a PF dish of the same nominal size. I suppose what I am querying is would that small difference actually be relevant when it comes to signal quality being seen at the LNB?</p></blockquote><p></p>
[QUOTE="joddle, post: 945964, member: 247983"] I often wondered about the differences between PF and offset - to me the offset seems if could induce more phase shift problems as it means that although a circle is presented to the signal, the differences in the distance the signal travels from the reflective surface of the dish to the LNB must be very much greater from the top of the dish that at the bottom and that difference is more than would be experienced in a PF dish of the same nominal size. I suppose what I am querying is would that small difference actually be relevant when it comes to signal quality being seen at the LNB? [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Offset v prime focus chat
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