I received the last of my equipment today and completed the installation. Here is what I did and the results I got.
Originally, I mounted an RCA ANT751 antenna on the pole where my 1000.2 dish is located, just below the dish itself. This antenna was split and diplexed onto two RG-6 runs for receivers in the house. OTA signal quality, which was good with a direct connection, dropped to unusable on all but a couple channels.
Next, I switched to using two baluns instead of splitting the feed from a single balun. That helped a little, but still was not enough for most channels. I decided to swap out my consumer grade diplexers on both ends with Holland DPD2 diplexers. What an improvement! Now I was able to get all but two channels most of the time.
Today I added a Winegard AP8700 to the system, but rather than using their power injector, I used a Holland HFS3D splitter (back to a single balun) to feed the two diplexers with the power injected from an unused run in the house to the third port on the splitter.
Results? Works like a champ! I am getting both virtual UHF channels for each of the big four networks (all 2Edge at about 27 miles) in the calculated azimuth with one pair being mid 70s and the rest at 98+ on my ViP211 signal meters. In addition, I am getting 1 UHF channel (four virtual PBS, LOS at 18 miles) from the reciprocal azimuth in the low 80s on the signal meters. There is one other digital channel that I am detecting roughly 8 degrees off azimuth (1Edge) at around 50 signal quality, but since it is unwatchable I deleted it from the scan.
Attached is a photo of the final install.
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