Empirical Earth · Radio & Long-Distance Signals
The claim
“If Earth is flat, why such tall masts — and a cell tower every few km?”
What is measured
Line-of-sight VHF/UHF reach is set by the radio horizon, ≈ 4.12·√h(m): a 629 m mast reaches only ~103 km, so coverage takes thousands of transmitters and cell towers, never one giant antenna, and more power cannot see past a curve. (Hams beat that same horizon by bouncing off the ionosphere,.)
What would show this is wrong
a single ground-based VHF transmitter that, given enough power, covers an entire continent line-of-sight; or broadcast and cell coverage that does not depend on antenna height.
Sources
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