Why did old TVs produce an awfully loud static noise and weird visual when they had no signal rather than showing nothing like newer TVs do?
In: Technology
Because they did not know they had no signal. They just displayed raw data from the antenna.
If someone was transmitting, that was a TV video. If nobody was transmitting or the signal didn’t reach the TV because your antenna was broken or not plugged in, it just received and displayed the static randomness that’s in the air.
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