when using rfid what is an arpt (active reader passive tag)
RFID systems can be classified by the type of tag and reader. A Passive Reader Active Tag (PRAT) system has a passive reader which only receives radio signals from active tags (battery operated, transmit only). The reception range of a PRAT system reader can be adjusted from 1 -- 2,000 feet (0 -- 600 m), allowing flexibility in applications such as asset protection and supervision.