I just received my new C-Band LNBF in the mail today.  When I took it out of the package, I realized I wasn't sure how to put it together.  I have the "Orion C-Band CLNBF1LP" LNBF.  It came with a feedhorn and the LNB.  However, there are notches on the LNB that say "34, 36, 38, 40, 42".  What...