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Antenna TV is pretty cool, actually
(www.spacebar.news)
This is a most excellent place for technology news and articles.
"Valleys" was the key word there. Even if the distance isn't bad, a mountain between you and the broadcast tower can make 20 miles look like 70 in terms of signal
Source: am Appalachian resident
With ATSC 1.0 channels this is generally true, with some exceptions, but ATSC 3.0 channels use OFDM to circumvent a lot of interference. There's no real way of knowing whether or not it would work but Amazon has a 30-day return policy.
in the town of Appalachia there is a pbs station that cannot broadcast ota because of the mountains