BBC Moneybox - contactless hiccups

Clive D.W. Feather clive at
Mon May 20 15:40:13 BST 2013

Ian Mason said:
> There are several collision avoidance mechanisms for RFID cards.

Cambridgeshire Libraries has an automated checkout system that uses some
kind of RFID tags in the book. I've tried putting a stack of 6 books on the
reader and it found all of them.

Clive D.W. Feather          | If you lie to the compiler,
Email: clive at     | it will get its revenge.
Web:  |   - Henry Spencer
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