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<blockquote data-quote="archive10" data-source="post: 1023075">C120 is the feed-interface for a feed-horn.It's not a type of LNB. So called &quot;Universal LNBs&quot; like the one you have have the feed-horn built in.Unfortunately, the one you have is designed for a much shallower offset dish (in techincal terms an f/D of about 0.6).It's all about how much of the dish the LNB &quot;sees&quot;.I have tried illustrating with a crude hand-drawing:[ATTACH]109271[/ATTACH]The &quot;universal LNB&quot; only sees a small part of your dish - your really need something to see the whole of the dish.In other words, you really need a feedhorn designed for a 0.36 f/D dish.This is what C-band LNBs used to use. Or have.Ku band changed everything.There are very few Ku-band LNBs with a built-in feedhornd for a 0.36 f/D dish.There is one called GI-209, which you can find find referenced elsewhere on this site.Alternatives are things like Inverto Blak Pro with a C-120 interface (has no feedhorn), and a suitable feedhorn from somewhere.I have learned from experience that the Chinese manufacturer of your dish (Jonsa) don't make feedhorns.So fro the choice of feedhorn, you need to look at ebay and elsewhere to find something that works.Which is not to say that you can't get reception - there is no on/off of analogue reception characteristics.Even Universal LNBs will work to some extent - you should be able to get stuff off the European beam, even with your setup.So go forth and experiment!</blockquote>

[QUOTE="archive10, post: 1023075"] C120 is the feed-interface for a feed-horn. It's not a type of LNB. So called "Universal LNBs" like the one you have have the feed-horn built in. Unfortunately, the one you have is designed for a much shallower offset dish (in techincal terms an f/D of about 0.6). It's all about how much of the dish the LNB "sees". I have tried illustrating with a crude hand-drawing: [ATTACH]109271[/ATTACH] The "universal LNB" only sees a small part of your dish - your really need something to see the whole of the dish. In other words, you really need a feedhorn designed for a 0.36 f/D dish. This is what C-band LNBs used to use. Or have. Ku band changed everything. There are very few Ku-band LNBs with a built-in feedhornd for a 0.36 f/D dish. There is one called GI-209, which you can find find referenced elsewhere on this site. Alternatives are things like Inverto Blak Pro with a C-120 interface (has no feedhorn), and a suitable feedhorn from somewhere. I have learned from experience that the Chinese manufacturer of your dish (Jonsa) don't make feedhorns. So fro the choice of feedhorn, you need to look at ebay and elsewhere to find something that works. Which is not to say that you can't get reception - there is no on/off of analogue reception characteristics. Even Universal LNBs will work to some extent - you should be able to get stuff off the European beam, even with your setup. So go forth and experiment! [/QUOTE]

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