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FCC Regulations on WiFi

12 bytes added, 03:16, 20 February 2010
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* One Watt (1000mw) is the FCC limit on WiFi devices* One Watt (1000mw) is the FCC limit on [[WiFi]] devicesThe most popular WiFi standards today, 802.11b and 802.11g, both operate in the 2.4 GHz (Giga Hertz) frequency band and are susceptible to interference from other products operating in the 2.4 GHz band including microwave ovens, Bluetooth devices, baby monitors and cordless telephones. 802.11n, currently in Draft 2.0 standard (with projected standard approval in the fall of 2008), can use both 2.4 GHz and 5 GHz frequencies.The most popular [[WiFi]] standards today, 802.11b and 802.11g, both operate in the 2.4 GHz (Giga Hertz) frequency band and are susceptible to interference from other products operating in the 2.4 GHz band including microwave ovens, Bluetooth devices, baby monitors and cordless telephones. 802.11n, currently in Draft 2.0 standard (with projected standard approval in the fall of 2008), can use both 2.4 GHz and 5 GHz frequencies.The 802.11g specs for OFDM require linearity in the standard and add-on amplifiers such that antenna gain is far more prudent than transmitter power. Most WiFi chipsets cannot produce an honest, high quality signal at more than about 36mw. The same chipsets can produce about 100mW in the lowest speeds of 11g and all 11b speeds, since 11b is not OFDM.The 802.11g specs for OFDM require linearity in the standard and add-on amplifiers such that antenna gain is far more prudent than transmitter power. Most [[WiFi]] chipsets cannot produce an honest, high quality signal at more than about 36mw. The same chipsets can produce about 100mW in the lowest speeds of 11g and all 11b speeds, since 11b is not OFDM.
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