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This application note describes the coexistence performance of the CC2420 2.4 GHz transceiver when operating in an environment together with Bluetooth, WLAN or other ZigBee devices. The coexistence performance, which is described by parameters such as the adjacent and alternate channel rejection, is particularly important when selecting the right transceiver for a crowded radio environment. The CC2420 exhibits excellent rejection of interfering transmitters.
http://www-s.ti.com/sc/techlit/swra094