Near field communications technology is a term that is slowly working its way into main stream smart phone vocabulary made more popular by inquisitive terms like “NFC payments” and “digital wallets”, in fact there is a strong chance that if you belong to the social circle of android smart phone users that you have used NFC technology via “beam” to instantly share documents and files with friends but what exactly is NFC?
Put simply NFC is a extremely short ranged wireless radio field that can be used to transfer data between devices equipped with NFC microchips, these chips have the ability to function in two states, active and passive depending on the required task. When a device is active and sending information it generates its own radio field which both devices can use to complete the exchange allowing passive devices such as NFC posters to operate without their own power supply. In cases where two powered active devices are exchanging data they take turns sending and receiving information while both generating a radio field, this typically allows for transfers to occur over larger distances of approximately 20cm opposed to the typical 4cm range between active and passive devices.
Put simply NFC is a extremely short ranged wireless radio field that can be used to transfer data between devices equipped with NFC microchips, these chips have the ability to function in two states, active and passive depending on the required task. When a device is active and sending information it generates its own radio field which both devices can use to complete the exchange allowing passive devices such as NFC posters to operate without their own power supply. In cases where two powered active devices are exchanging data they take turns sending and receiving information while both generating a radio field, this typically allows for transfers to occur over larger distances of approximately 20cm opposed to the typical 4cm range between active and passive devices.