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Originally Posted by ADTech
If you're back in "tight" to the back side of a sharply changing bit of terrain, the signal calculations become grossly overestimated, especially on UHF channels. If there are trees in the signal path, the problems gets even worse.
I put your location as a bit north and west of the intersection of Almaville and Spantown Roads, perhaps at or next to the Methodist church.
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Correct. We are on Spanntown, right behind the church. Turn west out of my drive and within 0.25 mile you are headed up hill.
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You're right, quite a hill behind you in the direction of the main towers which are mostly located on top the hill on I-24 heading west. Two of the three stations you're receiving (WHTN & WJFB, virtual channels 39.x and 44.x (incorrectly identified as 66.x) transmit from Lebanon and are not terrain-blocked. WSMV transmits from a tower out on I-40 two miles west of the I-440 split and it's less blocked close-in by hills. That explain the three stations you're getting.
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Exactly the kind of info I was seeking. Thank you for looking into it.
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Simply getting the antenna out of the attic and up in the air would very likely improve your situation. Leaving any antenna in the attic will be a failure.
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I really didn't want to go to an outdoor setup, but I guess I need to look into it. My highest gable is actually pretty accessible from a lower portion of the roof, (allowing self-install) and that location would allow me to use the current pull of coax. Next question there is -- what do I need to do about lighting arrest?