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Answer Posted / rajendra gupta
Radio Signals are the keys, which make WiFi networking possible. These radio signals transmitted from Wi-Fi antennas are picked up by WiFi receivers, such as computers and cell phones that are equipped with WiFi cards. Whenever, a computer receives any of the signals within the range of a WiFi network, which is usually 300 - 500 feet for antennas, the WiFi card will read the signals and thus create an internet connection between the user and the network without the use of a cord.
Access points which consist of antennas and routers are the main source which transmit and receive radio waves.
Antennas work stronger and have a longer radio transmission with a radius of 300-500 feet which are used in public areas while the weaker yet effective router is more suitable for homes with a radio transmission of 100-150 feet.
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