I'm reaching out for advice here. Recently I have been taking my Hopper, Single Node, and 1000.2 antenna with my camping trailer with inconstant results - mostly bad. Sometimes it works, more often I spend 3 hours with no joy or maybe one satellite. Usually after a check switch the results change of satellites seen from the time before. Here's my latest experience: Yesterday I pointed to a completely clear LOS to 119, with foil over the 110 and 129 LNBs. Two minutes of aiming and it locks and identifies 119 60-70 on point dish screen. Removed the foil, did a check switch, and it sees 129 only. The antenna was anchored securely to a park bench and didn't move. I would appreciate advice as to whether I should try replacing the node or the LNB first. Thanks in advance for any help.