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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Prime focus vs offset big dish
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<blockquote data-quote="Channel Hopper" data-source="post: 1115998" data-attributes="member: 175144"><p>I have supplied both offset and prime focus reflectors of 1.8m in single panel format for years. Once you go beyond 2-2.2m the issue with prime focus is the manufacture, moving away from spinning to forming. Offset reflectors are almost always mounded once above 1.8m which means strength in their design and the ability to survive the transportation to site.</p><p></p><p>Perhaps the 'flatness' (think volumetric/three dimensional ) profile of an offset reflector makes them a better product to ship as a single item, but I would suggest the rigidity of a composite / fibreglass / smc product against a steel/aluminium product helps keep the losses / replacement factor down.</p></blockquote><p></p>
[QUOTE="Channel Hopper, post: 1115998, member: 175144"] I have supplied both offset and prime focus reflectors of 1.8m in single panel format for years. Once you go beyond 2-2.2m the issue with prime focus is the manufacture, moving away from spinning to forming. Offset reflectors are almost always mounded once above 1.8m which means strength in their design and the ability to survive the transportation to site. Perhaps the 'flatness' (think volumetric/three dimensional ) profile of an offset reflector makes them a better product to ship as a single item, but I would suggest the rigidity of a composite / fibreglass / smc product against a steel/aluminium product helps keep the losses / replacement factor down. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Prime focus vs offset big dish
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