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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Astra 3B at 23.5°E
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<blockquote data-quote="a33" data-source="post: 1044733" data-attributes="member: 332642"><p>The bigger the dish, the more important the exact positioning of the LNBs in a multifeed setup.</p><p>With monoblocks, the distance cannot be adjusted.</p><p></p><p>So I only use a monoblock if the needed LNB distance is too short, to use two separate LNBs.</p><p>In your case that only would be a problem, I guess, if your 1.6m dish is a PrimeFocus, with very low f/D ratio.</p><p></p><p>And such a monoblock is usually designed for a 80 cm offset dish (f/D about 0.6-0.65), region Middle Europe; so you would have to calculate and check whether it would fit your purpose. (That is always the case with monoblock LNBs; they come in all sorts of sizes, sometimes even with skewed internal antennas!)</p><p></p><p>What makes a multifeed setup easier, is to calculate the angle of the multifeedrail (against the horizontal) beforehand; so that finding the position for the second LNB is a matter of uni-dimensional sliding the LNB along the pre-adjusted multifeedrail, instead of trying to find the needed distances both horizontally and vertically.</p><p></p><p>greetz,</p><p>A33</p></blockquote><p></p>
[QUOTE="a33, post: 1044733, member: 332642"] The bigger the dish, the more important the exact positioning of the LNBs in a multifeed setup. With monoblocks, the distance cannot be adjusted. So I only use a monoblock if the needed LNB distance is too short, to use two separate LNBs. In your case that only would be a problem, I guess, if your 1.6m dish is a PrimeFocus, with very low f/D ratio. And such a monoblock is usually designed for a 80 cm offset dish (f/D about 0.6-0.65), region Middle Europe; so you would have to calculate and check whether it would fit your purpose. (That is always the case with monoblock LNBs; they come in all sorts of sizes, sometimes even with skewed internal antennas!) What makes a multifeed setup easier, is to calculate the angle of the multifeedrail (against the horizontal) beforehand; so that finding the position for the second LNB is a matter of uni-dimensional sliding the LNB along the pre-adjusted multifeedrail, instead of trying to find the needed distances both horizontally and vertically. greetz, A33 [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Astra 3B at 23.5°E
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