After reading your board,am installing a new Norset 8115 LNB. When using the 90 degree waveguide that came with it ,I am not sure how to install the LNB as the ant in side the LNB is a completely different position than the one I am replacing. In other words should the ant in the LNB be pointed up or down or does it make any difference. As much as this thing cost you would think it came with instructions.