Quote:
Originally Posted by mshoward82
As it gets closer to the ceiling the signal gets worse.
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If it's a big building, it's likely a concrete floor with either reinforcement rod, or metal decking that forms and supports the concrete until it's cured. Or both. No surprise that it's negatively effecting reception, and even wood is likely to have negative effects. Walls similarly can have metal studs, or wire lathe (if plaster), and electrical wiring, and plumbing, and so on. Plus all your neighbors' stuff, including big metal boxes like refrigerators.
Any chance there's a big building outside your window that your antenna can 'see'? Sometimes, in big cities for instance, you can get better reception with signals reflected off a large object, like a building or hill.
Other than that, of marginal utility at best, I'm spitting dust.