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Why radio, which needs extra equipment, and not wifi which comes built in to every laptop?
by brador 13y ago
Why radio, which needs extra equipment, and not wifi which comes built in to every laptop?
- xwintermutex 13y agoNot to nitpick, but wifi is radio. The propagation of radio waves depends on their frequency. The frequency wifi operates on is in the GHz, which mostly is line-of-sight only. This is not always practical. See [1] for an overview of frequency and propagation. [1]: http://en.wikipedia.org/wiki/Radio_propagation http://en.wikipedia.org/wiki/Radio_propagation
- ekianjo 13y agoEver tried to communicate with wifi at a distance longer than 50 meters? Yeah. You won't get good results.