I have a 3 LNB antenna and I have some transponders missing such as 1 & 8; 13 and 16 on the 101° satellite. Same issue with the 119° feed. All others are strong. Any suggestions?
I agree with the spot beam suggestion, except those listed by the OP aren't spot beams. The TPs on 101 that are spot beams are 4, 12, 18, 20, 26, & 28. I believe the spots on 119 are 23, 25, 29, and 31.