I have Vu+duo2 . I have problem on frequency 11903 H , 25000, 3/4 , DVB-S2, 8PSK , on Thor 6 0.8 W. I get mosaic pic. Although i have SNR 92% , AGC 86% , BER 0. I tested my old vu+ duo but same problem. I even tested my friend vu+solo2 at his home with his satellite dish and lnb , het get lower SNR and ACG , but still same mosaic pic on this frequency. but same problem. I this problem is oly related to Linux based receivers ? Thanks in advance.