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<blockquote data-quote="a33" data-source="post: 1052041" data-attributes="member: 332642">There are multifeed dishes with support arms, such as Visiosat/Cahors Big BiSat, and Wavefrontier T90, and I believe there was some Triax (or other brand) too? For just two LNBs maybe a bit overkill...When you buy a multifeed rail, be sure it fits to your dish-arm! Otherwise buy or make a multifeed-holder that fits over a central LNB ~ You'd have to use a central LNB then (at 19.2E?).Goniometrics beforehand: The tilt for the dish or rail for the two outer LNBs can be calculated approximately beforehand, undependently of dish size, solely dependent on your location.For the distance between LNBs you'll need to determine the effective focal length of you dish, and then an approximate distance can be calculated.I'm not sure which method is the best for that, though. I've seen some methods, and there are calculators with unknown methods, but I 'm still puzzled a bit for what would be an EXACT calculation (same goes for dish tilt calculation).Greetz,A33</blockquote>

[QUOTE="a33, post: 1052041, member: 332642"] There are multifeed dishes with support arms, such as Visiosat/Cahors Big BiSat, and Wavefrontier T90, and I believe there was some Triax (or other brand) too? For just two LNBs maybe a bit overkill... When you buy a multifeed rail, be sure it fits to your dish-arm! Otherwise buy or make a multifeed-holder that fits over a central LNB ~ You'd have to use a central LNB then (at 19.2E?). Goniometrics beforehand: The tilt for the dish or rail for the two outer LNBs can be calculated approximately beforehand, undependently of dish size, solely dependent on your location. For the distance between LNBs you'll need to determine the effective focal length of you dish, and then an approximate distance can be calculated. I'm not sure which method is the best for that, though. I've seen some methods, and there are calculators with unknown methods, but I 'm still puzzled a bit for what would be an EXACT calculation (same goes for dish tilt calculation). Greetz, A33 [/QUOTE]

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