Basic RFID involves of a transceiver, an antenna, and transponder. Antenna sends the radio signals to turn on tag and to read and write information into it. Reader sends the radio waves that range from one to 100 inches. It depends on the basis of used radio frequency and output.
While passing through electronic magnetic zone, RFID tag detects activation signals of readers. The tag is powered by its internal battery or by the reader signals. It sends radio waves back to the reader. You may search for RFID Chip Timing Fayetteville Arkansas on the Internet to get more information in this regard.