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What is the effect when RFID heads are mounted on metal frames called?

The effects of RFID heads when mounted on metal frames

Mounting the read/write heads on metal frames:



If the read/write heads are mounted so that they are joined through an enclosed metal frame, mutual interference may result (conductor loop). This may reduce the read/write distances. The smaller the read/write head, the less the interference. This may result in a reduction of the maximum distance by 80 %. In such a case you should test the actual effective read distance.


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