远距离射频读卡器

Long rang RFID card reader SRF-239A Specifications Operating frequency: 902 to 928MHz RF protocol: ISO18000-6B, EPC Class 1 and EPC Class 1 GEN 2 Operating method: FHSS or fixed frequency (settled by software) Internal antenna: 12dBi Linear polarization Maximum RF power: 30dBm RF power range: 20 to 30dBm (adjustable by software) Identify tag mode: Fixed time automatically reads the tag External trigger control reads the tag Software control reads the tagIdentify tag time: less than 8ms (identify single tag) Reading/writing time: Reads every 8 bytes to be smaller than 5ms Writes every 4 bytes to be smaller than 25msReading distance: greater than 8m (antenna dependent) Writing distance: greater than 5m (antenna dependent)