Can somebody tell me what this is. It had a white backing on it that I peeled off
Hi Jan,
There may (guessing) be many variants, there is a (dumb tag) type which is on both side of entryways which uses a receiver circuit here:
https://www.edaboard.com/threads/antennas-for-8-2-mhz-tag-detection.358819/
Possibly some manufacturers keep it vague for security through obscurity perhaps, so I'm not sure.
shabaz wrote: Hi David, .... (a radio transmitter and a receiver circuit).
shabaz wrote:
Hi David,
.... (a radio transmitter and a receiver circuit).
nuance: It's a transmitter that gets its stable state disturbed by the resonant circuit when it moves in range. There's no receiver that gets a reply.
... and here Panasonic MN63Y1214 NFC Evaluation Kit - Review
Enrico
As already stated by shabaz and balearicdynamics, they are security tags frequently used in retail.
Some further information about the operational principles of these RF Tags (and other technologies) can be viewed here:
https://en.wikipedia.org/wiki/Electronic_article_surveillance
It is similar to an RFID Tag but you can see that there is not the small chip instead present in the RFID tags. In this case if you place thin Aluminium foild around the tag it is masked by the detector (an RF emitter) and no alarm will start
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