Can a Long-Range Active 433 MHz RFID System Transmit Location Data to a Cell Phone?

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Ask The ExpertsCan a Long-Range Active 433 MHz RFID System Transmit Location Data to a Cell Phone?
RFID Journal Staff asked 7 years ago

Could the phone then automatically relay that information during an emergency call to 911?

—Tyrone

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Tyrone,

Cellular systems operate at 800 MHz and higher frequencies, so an active RFID system operating at 433 MHz could not communicate directly with a cell tower. It would be like trying to listen to an FM station with an AM-only radio. Plus, RFID systems have their own communications protocol, which differ from cellular network protocols.

You could, of course, hook up a cellular phone to a reader, then write software that would trigger a call to 911 and relay data (for instance, "Tag 123456789 was read at 8:01 AM"). I'm not sure what they would do with that information, but it should be possible.

I hope this answers your question, and I look forward to seeing you next month at RFID Journal LIVE! 2017.

—Mark Roberti, Founder and Editor, RFID Journal

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