Mobile frequency allocation

GSM 850⁄900 MHz 1.228 MHz = 3Mb/s Wireless 802.11n 40 MHz channel width 2.4 GHz 5 GHz https://en.wikipedia.org/wiki/List_of_WLAN_channels#/media/File:2.4_GHz_Wi-Fi_channels_(802.11b,g_WLAN).svg 2412, 2417, 2422, 2427 2432, 2437, 2442, 2447 2452, 2457, 2462, 2467 2472, 2484 UMTS (3G) 3GPP W-CDMA (wideband) 2100 MHz 5 MHz = 2Mb/s Each cell uses 1.8-12 kb/s U-NII 5.150 - 5.925 https://en.wikipedia.org/wiki/U-NII Bluetooth 2.4 to 2.485 GHz A computer chip selects the 79 channels of the ISM band automatically to prevent eavesdropping and interference with other equipment. [Read More]