I have troubles with finding some frequencies on same satellite. I am using Multifocus 85 dish with 4 Quad LNBs (Golden Interstar) and DiseqC 4/1 switches. I am able to search only some frequencies from each satellite. This problem occures on all 4 positions. The signal quality is around 80 % on each LNB (satellite). Does anybody know where the problem can be?