hey guys. i bought a box with 7 lnbs, 3 ku and 4 c band from a guy and he also gave me a feedhorn that has a slot at the top left side for a ku band lnb. i was told that he doesnt know if it still works or not. but hey i paid 35 bucks and have tested 2 lnbs and they both work so that is more than 35 dollars there.anyways the feedhorn is a california amplifier and i was wondering if any of you have used one of these before. i have never installed a feedhorn before and fear that i could mess up the focal point.