How Much Power Can a Transponder Transmit?


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Ask The ExpertsCategory: QuestionsHow Much Power Can a Transponder Transmit?
EHOUD PELEG asked 1 year ago

What is the ETSI or IEC maximum allowable transmitting power (field strength and measuring distance) for a 119 to 134 kHz passive tag transponder? From my previous experience (2005 to 2006), I remember that it could not exceed -28dBuA/m at 10m. Also, I know that this is well-defined in the FCC 15.209a regulation, but in Israel we follow the European standard.


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As you said, Israel follows the European Telecommunications Standards Institute (ESTI) standard for communication via RFID. And it has, indeed, evolved. Currently, the limit is 66 dBµA/m at 10 m. You can find all the limits for short-range devices (9 kHz to 25 MHz), regarding the field strength and measuring distance described, here.

Claire Swedberg
Senior Editor
RFID Journal


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