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RFIDSupplyChain

RFID Readers

What is an RFID reader?

An RFID reader (also called an RFID interrogator) is a transmitter/receiver that reads the contents of RFID tags in the vicinity.  The maximum distance between the reader's antenna and the tag vary, depending on application and type of RFID.

What is reader collision?

One small problem with RFID is there can be interference between two readers.  This is called reader collision.  The RFID fields of the readers collide and cause problems.  One solution might be to have the readers operate at different times to reduce collision. Most current readers are designed to deal with reader collision.

What is dense reader mode?

Dense reader mode is used when many readers are being used in close proximity.  Each reader will use a different channel from the other readers in the area to communicate with the tags.  This prevents reader collision.