High Frequency (HF) RFID tags use
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125 kHz
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915 MHz
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2.54 GHz
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13.56 MHz
D
Correct answer
Explanation
High Frequency (HF) RFID operates at 13.56 MHz, which is the international standard for HF RFID systems (ISO/IEC 14443, ISO/IEC 15693). Low Frequency (LF) uses 125 kHz, Ultra High Frequency (UHF) uses 915 MHz, and microwave uses 2.54 GHz.