We’ve all see those tall antennas on top of cop cars or on older cars. But i never understood how it worked or whats in them. Are they literally just a long flexible wire? Does the signal emit from the top or throughout the length of the wire?
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In the case of your car (using your example) it’s only acting as a receiver. It literally catches/absorbs the electromagnetic waves being transmitted from radio towers. Inside your car it’s connected to your radio to let you hear what’s being sent on your selected frequency.
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