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<blockquote data-quote="Huevos" data-source="post: 807577" data-attributes="member: 301161">CJ, you don't need a C120 LNB, and in my opinion there aren't any that can perform anywhere near as good as the Black Ultra. Just undo the grub screw and take the flange out completely. Then cut the feedhorn off the Black Ultra. Cut off everything except the central ring of the scalar. Once you have done that and sanded it down so it is smooth it is a perfect in the Fibo feedhorn.Mine (picture attached) doesn't use the outer case of the LNB. [ATTACH]43930[/ATTACH]<a href="http://www.satellites.co.uk/forums/pictures-members-setups-general-satellite-installations/181505-fibo-90-clarke-tech-hh390-motor.html#post966793" target="_blank"></a><a href="http://www.satellites.co.uk/forums/pictures-members-setups-general-satellite-installations/181505-fibo-90-clarke-tech-hh390-motor.html#post966793" target="_blank">What I found was the central concentric ring of the Black Ultra feedhorn is almost the same size as the flange adaptor, so I just cut off all the outer rings of the feedhorn and just left the central one. I sanded it a little bit by hand until it was exactly the same size as the flange adaptor. Then I pushed it up the Fibo feedhorn until it was in contact with the step inside the feedhorn and tightened up the grub screw. Obviously there is no o-ring to keep the rain out so I sealed between the Fibo feedhorn and the LNB with self amalgamating tape.</a>The following is a link to pictures that have done the same thing but a bit of a tidier job using the original case.<a href="http://www.satellites.co.uk/forums/pictures-members-setups-general-satellite-installations/181505-fibo-90-clarke-tech-hh390-motor.html#post968152" target="_blank">Pictures here.</a></blockquote>

[QUOTE="Huevos, post: 807577, member: 301161"] CJ, you don't need a C120 LNB, and in my opinion there aren't any that can perform anywhere near as good as the Black Ultra. Just undo the grub screw and take the flange out completely. Then cut the feedhorn off the Black Ultra. Cut off everything except the central ring of the scalar. Once you have done that and sanded it down so it is smooth it is a perfect in the Fibo feedhorn. Mine (picture attached) doesn't use the outer case of the LNB. [ATTACH=CONFIG]43930[/ATTACH] [URL="http://www.satellites.co.uk/forums/pictures-members-setups-general-satellite-installations/181505-fibo-90-clarke-tech-hh390-motor.html#post966793"] [I]What I found was the central concentric ring of the Black Ultra feedhorn is almost the same size as the flange adaptor, so I just cut off all the outer rings of the feedhorn and just left the central one. I sanded it a little bit by hand until it was exactly the same size as the flange adaptor. Then I pushed it up the Fibo feedhorn until it was in contact with the step inside the feedhorn and tightened up the grub screw. Obviously there is no o-ring to keep the rain out so I sealed between the Fibo feedhorn and the LNB with self amalgamating tape.[/I][/URL] The following is a link to pictures that have done the same thing but a bit of a tidier job using the original case. [URL="http://www.satellites.co.uk/forums/pictures-members-setups-general-satellite-installations/181505-fibo-90-clarke-tech-hh390-motor.html#post968152"]Pictures here.[/URL] [/QUOTE]

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