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At What Speed Can a Group of RFID Tags Can Be Read?
What is the maximum number of tags I can read on the fly in a production environment at a scanner gate?
It wouldn't be possible to answer your question precisely since there are many variables that cannot be accounted for. Are the tags on densely or loosely packed items, for example? It makes a difference. How fast are the tagged items moving? And are the tags on RF-friendly material or on items containing water or metal, which can impact read rates? In general, I would say that you can read about 50 passive UHF RFID tags per second under favorable conditions—that is, on RF-friendly items, with minimal water or metal interference, and using high-quality tags and readers.
—Mark Roberti, Founder and Editor, RFID Journal
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