I think the loss of channel reception from the 10 ° E and 9 ° E positions is due to the fact that it was a compromise - two satellites from one LNB. It helps to set the LNB to exactly one satellite. And don't forget that in the past all channels broadcast in the DVB-S standard and QPSK modulation ... The combination of the DVB-S2 standard, 8PSK modulation requires a higher signal reserve. Personally, I would choose the position 9 ° E where is 6ter HD. 10 ° E where the Kurdistan TV HD and Kurdistan 24 HD channels are QPSK modulated, but the DVB-S2 standard and the combination with high FEC 4/5 and 8/9 require an even higher signal reserve on the end viewer's side. I would also play with fine-tuning the SKEW LNB and sliding the LNB forward, backward. For the 10 ° E position, I would use a second dish.