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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Multi-lnb losses off prime focus
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<blockquote data-quote="Terryl" data-source="post: 1094596" data-attributes="member: 369937"><p>Most (if not all) prime focus dishes have a circular focal point,(if it is a round dish) when you get off to one side of centre the focal point will start to go oblong for any satellite that is not on centre, you can counter this a bit by offsetting the dish to a point in the middle of the two satellites.</p><p></p><p>You will lose signal strength on the prime satellite but it will work a bit better, for the 10 E and 7E combo you can offset by 1.5 degrees. (to 8.5 degrees) However some dishes do not have a very wide receive beam width, so the offset may or may not work too good.</p><p></p><p>An elliptical dish would work better at this then a prime - they have a wider beamwidth.</p></blockquote><p></p>
[QUOTE="Terryl, post: 1094596, member: 369937"] Most (if not all) prime focus dishes have a circular focal point,(if it is a round dish) when you get off to one side of centre the focal point will start to go oblong for any satellite that is not on centre, you can counter this a bit by offsetting the dish to a point in the middle of the two satellites. You will lose signal strength on the prime satellite but it will work a bit better, for the 10 E and 7E combo you can offset by 1.5 degrees. (to 8.5 degrees) However some dishes do not have a very wide receive beam width, so the offset may or may not work too good. An elliptical dish would work better at this then a prime - they have a wider beamwidth. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Multi-lnb losses off prime focus
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