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Telecom Foundations
Try these first, even if you're not sure. Guessing primes your brain.
Old TV antennas were huge. Phone 5G antennas are tiny. Why the difference?
FM radio still works faintly in a tunnel. 5G dies there. Why?
Behind a thick wall, 4G works but high-band 5G dies. Why?
Answer all 3to continue — it's OK to be wrong.