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Basic features
- By definition, a transponder is called passive because it doesn't need any battery nor power supply to operate.
The radiofrequency transmission works only when the transponder enters the electro-magnetic field induced by the reader/writer
device antenna.
- In order to receive energy and to communicate with the reader, passive tags use "near field" methods which employs
electro-magnetic inducting coupling between the coil of the tag and the reader. Data transfer rate is very fast: just in time
information are updated, exchanged, shared and managed using local ERP systems.
- RFID tags and readers fall under the category of short range devices, governed by the law and regulation which varies from
country to country.
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