You may very well be on to something John. I bought a 91xg, ya-1713, and cm-7777 all of which arrived last week. I quickly assembled the 91xg and connected it using an old 25 foot long piece of rg6 laying around the house and mounted it about 5 feet off the ground facing east on the handrail of my front porch. I was pleasantly surprised to find that the antenna picked up all the available uhf channels with a very usable signal coming from the problematic UPN and FOX affiliates. Over the weekend I found the time to mount both antennas plus the preamp on two 10 foot masts with a new 50ft rg6qs leading to the cable company’s distribution box on the side of my home. (Yes ADTech, my cable internet is running on separate coax from a different provider) and I get no signal from UPN or FOX.
I’m wondering if the problem is location, height or coax length/signal loss through distribution. Any suggestions?
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