AltheEngineer wrote:I have to go with the tree trim especially since the other tower is so close to the path. But I had ABC ask if I had their receiver LNB power on in addition to a different receiver and that fixed it. Even with a passive splitter that shows a power path, it can heat up some of the DC splitter pads causing an intermittant loss of signal. Dial Global usually requests a powered splitter which doesn't have that problem.
Al hit close to what I was going to ask. Have you checked the LNB power supply yet?
You mentioned you've swapped feedlines, and LNBs, but have you tried replacing the power supply.
Also have you looked at the Sat dish with a spectrum analyzer to see what the signal looks like ? Maybe you're experiencing some bad TI. That tower is close to the satellite path, you may be getting some TI reflecting off of it.'
Two other things to check, make sure the focus is still correct. (Distance measured from the LNB to the center of the dish. The specs for the dish will be availble from Comtech or if you have the manual), and check that the dish is still round too and not warped. (With a measuring tape, not your eyes!)
Two other notes:
1) Get that tree taken down if you can.
2) The cables "wrapped up" on the arm of the feedhorn mount should be unwrapped and run vertically with the mount itself. Don't leave those wrapped on the arm, as they will cause issues.