Frequencies Used by Region
Radio Waves are electromagnetic waves whose frequencies lie between 9 KHz and 3000 GHz. Other electromagnetic wave types are infrared, visible light wave, ultraviolet, x-ray, gamma-ray, and cosmic-ray. Within the radio spectrum (as illustrated in the diagram below), RFID uses radio waves that are generally between the frequencies of 125 KHz and 5.8 GHz, and can be categorized as:
- Low Frequency (LF) - ranges between 30 KHz and 300 KHz, and LF RFID systems commonly use the 125 KHz to 134 KHz frequency range.
- Medium Frequency (MF) - ranges from 300 KHz to 3 MHz, and none of the current RFID systems operate in this range.
- High Frequency (HF) - ranges from 3 MHz to 30 MHz, with 13.56 MHz being the typical frequency used for HF RFID systems.
- Very High Frequency (VHF) - ranges from 30 MHz to 300 MHz, and none of the current RFID systems operate in this range.
- Ultra High Frequency (UHF) - ranges from 300 MHz to 1GHz. A typical UHF RFID system operates at 915 MHz in the United States and at 868 MHz in Europe.
- Super High Frequency (SHF) - ranges upward from 1 GHz, and a typical SHF RFID system operates either at 2.45 GHz or 5.8 GHz.
RF Frequencies used by Region/Country:
UHF Frequencies allowed by Region/Country:
| North America Taiwan Singapore Korea China Australia Hong Kong Israel UK / EU | 902-928 MHz 922-928 MHz 923-925 MHz 910-914 MHz 917-924 MHz 918-926 MHz 920-925 MHz 916 MHz 860-868 MHz |
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