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Definition: 2.4 GHz band


The frequency range from 2.4 to 2.4835 GHz, which is unlicensed and used for many communications applications, including Bluetooth and Wi-Fi. Microwave ovens also use this frequency but at significantly greater wattage. For example, whereas a cellphone might emit one watt into the atmosphere, a microwave oven cooks food internally at 700 watts and more. See 5 GHz band, ISM band, Bluetooth and 802.11.