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this post was submitted on 11 Jul 2023
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Ask Lemmy
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I live in the here and now, and I’m still baffled by wireless internet. It’s modern sorcery
Little bots screaming 1s and 0s at each other really fast at a pitch you can't hear.
Haha. The bots are screaming in morse codes.
Actually decent description
I remember finding out about wireless internet from an Intel TV ad. There was somebody with a laptop, browsing internet (probably an AOL page or something like that considering the era) sitting on a chair in the middle of a stadium, with no cable to be seen.
I thought “well that’s stupid, I know you can avoid the power cable for a while if there’s a battery, but if he’s browsing the internet, there has to be a network cable”. But the ad ran over and over on TV, clearly insisting there was no cable, so I was like “hm wait…”.
Eventually I read about wireless networks somewhere a couple of weeks later, and suddenly it all made sense.
I studied RF in college and it's still sorcery. You wanna see a cool of the dark arts? Read up on QAM...
https://en.m.wikipedia.org/wiki/Quadrature_amplitude_modulation