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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Elliptical dish rotation
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<blockquote data-quote="N1501" data-source="post: 801127" data-attributes="member: 385437"><p>The majority of domestic fixed elliptical dishes ( 28E ) that I see on people's houses always look horizontal with the LNB rotated. It is my understanding that elliptical or diamond shaped dishes have better side-lobe discrimination along their widest axis and that if the axis is orientated along the orbit, interference from the adjacent satellites will be minimised. Wouldn't this give a better BER ? With that in mind, why is the lnb not put in the 6 O'clock position and then</p><p>the whole dish rotated for the desired skew angle ? I know that some Sky dishes have an elliptical feed-horn lnb but I still don't understand why the dish isn't rotated like a motorised one would be.</p></blockquote><p></p>
[QUOTE="N1501, post: 801127, member: 385437"] The majority of domestic fixed elliptical dishes ( 28E ) that I see on people's houses always look horizontal with the LNB rotated. It is my understanding that elliptical or diamond shaped dishes have better side-lobe discrimination along their widest axis and that if the axis is orientated along the orbit, interference from the adjacent satellites will be minimised. Wouldn't this give a better BER ? With that in mind, why is the lnb not put in the 6 O'clock position and then the whole dish rotated for the desired skew angle ? I know that some Sky dishes have an elliptical feed-horn lnb but I still don't understand why the dish isn't rotated like a motorised one would be. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Elliptical dish rotation
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