Hi new to list. I am trying to install the Sd -- Have it installed and cabled to SW34. Of course I get nothing. I have the 3900 rec. Worked well with the D500, the one with 2 LNB. The rec says it cannot find the switch. So I connected each LNB direct to the rec, nothing on any LNB. Setup does not see any sat. The dish is set for 105W. I have checked it xx many times. I used a good compass and elevation indicator. All coax is new RG6. I have ordered a sat finder meter, it should be here Mon or Tue. I got one with the battery pack. I sure hope this does the trick, sure cannot seem to find any bird doing it with the rec and a tv out by the dish. Hope my LNBs are good- Any suggestions appreciated. RR