When I first got my dreamcatcher I was rather disappointed.
It seemed that no matter what I tried there was no signal. I tried various cones as seen in these forums. When winterizing my camper I brought my portable dish home and changed the lnb holder to hold the one that came with my dreamcatcher. And still no signal.
I was about to put the old lnb holder back on the dish and take it back to the camper. But with all the leaves having fallen off my neighbors trees decided to give the dish another go. And voila - I am now running around -6 snr.