As RFID adoption continues to grow, engineers are faced with an increasing need to validate tags both for interoperability with products from other vendors and for conformance with the specified protocol. The "sniffer" RFID tag test system uses a vector signal analyzer to “sniff” the air interface between an interrogator and a tag. This system uses a reference “gold” reader or RFID simulator to initiate an interrogation round with the tag. Meanwhile, the RF VSA (vector signal analyzer) is used to record and analyze both tag and reader transmissions over an RF air interface.
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