Join Date: Apr 2008
Location: Rimouski QC & A Southern Province
My experience is that if you are showing a signal level of ZERO, it indicates that your receiver (or tuner) is not communicating with the LNB. This could be due to a bad receiver, one or more bad connectors, a bad cable, or a bad port on the LNB.
On the other hand, if your receiver and your LNB ARE communicating, you will show at least SOME signal level (10-20), even if your dish is not pointed correctly or if the line of sight is blocked.
If you cannot do as gzink suggested above finding by another LNB, you could try to move your connections at the LNB to one of the other ports to see whether you have a bad port.
You mentioned "clearing a few branches". Be aware that it's difficult to estimate from looking at the dish exactly where the line of sight is. It's actually higher above the horizon than you might guess by viewing the dish from the side. The fact that you still have a signal that "comes and goes" indicates to me that you may need to do some more branch trimming.