I came up with a new problem. My unmodified bare lnbf mounting can work with lot’s of pointing difficulties and tweaking when on a pole about five feet away from my home.
However, move the the exact same setup to a mount bolted on my home results in an inability to get a satisfactory reception. Exact same coax/connectors/skyview.
1 Reflections of the direct broadcast signal off the structure causing a multipath into the lnbf. either directly into the face or as a side signal into the “unshielded” lnb.
2 More local signal interference from my access point, other ism devices, other emi/rfi from the structure. I don’t have a spectrum analyzer that can directly see 11.7 Ghz. Mine only directly can look at frequencies up to 2.7 Ghz.
3 Something in the routing of the coax since it is moved a little. I am using good quality quad shield rg-6 but changing the bending/looping could introduce some unintended swr or other feedline issues.
What does this all mean for my installation… more remediation to address the above issues… maybe the shielding ideas being discussed… maybe just acknowledge the fact that I can’t place the antenna on the south west or south east walls of my home…