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Does wireless communications like wifi, where different clients get different data, use different frequencies for each client? Or do they use the same frequency, but with time-divison multiplexing and encryption, so that no client can understand what was meant for another client?

Sidd
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    This http://en.wikipedia.org/wiki/Wi-Fi#Wi-Fi_radio_spectrum Wikipedia article is a good place to start in getting answers to your question. Doesn't really sound like an amateur "ham" radio question. – K7PEH Jun 04 '15 at 14:13

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Wifi is packet-based TDMA/CSMA with all users for a given access point using the same frequency.

alex.forencich
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