Try C Band with out a Switch (always unplug the receiver when connecting / disconnecting a switch)
C Band is much more forgiving than Ku.
I connected C-band side directly to the acutrac and had a reading of 0. It didn't matter where I was pointed in the sky. I never changed the skew or depth of the LNB while connected to C. Shouldn't I have some sort of signal even if the LNB needs to be adjusted? Even a low signal?
When I connected the acutrac directly to KU side I always had some kind of signal no matter where I was pointed.