>
>That seems like a challenging task.  If you have a shopping cart with
>100 items, wouldn't they all transmit at once when they passed through
>the scanner?  What is the limit to the number of simultaneous RFID tags
>you can read at once?

I've seen this demo, a shopping cart full of stuff on a ram pushed back and forth through a gate.  Apparently there's a holdoff so they don't all transmit at once. Probably based on interrogation.

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