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Global UHF RFID Frequency Table
Understanding regional differences in RFID regulations is essential for deploying successful identification and tracking systems worldwide. Below, we present a comprehensive table covering UHF RFID frequency ranges, maximum allowed transmission powers, and legal compliance parameters for different regions.
Use this guide to ensure your RFID applications operate efficiently and legally, avoiding disruptions and optimizing system performance across international markets.
Transmission Power Restrictions
Each country sets specific transmission power limits to prevent electromagnetic interference and ensure efficient communication among devices. Complying with these restrictions is crucial for achieving optimal RFID system performance and maintaining certification standards.
Explore the global UHF RFID frequency standards in the table below:
| Geographic Area | UHF Frequency Range | Max Allowed Power (Watt) | Max Allowed Power (dBm) |
|---|---|---|---|
| Australia | 920-926 MHz | 4 W | 36 dBm |
| Brazil | 902-907.5 / 915-928 MHz | 2 W | 33 dBm |
| China | 920.5-924 MHz | 2 W | 33 dBm |
| Korea | 917-923.5 MHz | 4 W | 36 dBm |
| United Arab Emirates | 865-868 MHz | 2 W | 33 dBm |
| Europe | 865.6-867.6 MHz | 2 W | 33 dBm |
| Hong Kong | 920-925 MHz | 4 W | 36 dBm |
| India | 865-867 MHz | 4 W | 36 dBm |
| Iran | 920-925 MHz | 4 W | 36 dBm |
| Israel | 915-917 MHz | 4 W | 36 dBm |
| Japan | 916-921 MHz | 4 W | 36 dBm |
| Malaysia | 919-923 MHz | 2 W | 33 dBm |
| New Zealand | 921-928 MHz | 4 W | 36 dBm |
| North America | 902-928 MHz | 4 W | 36 dBm |
| Singapore | 920-925 MHz | 4 W | 36 dBm |
| South Africa | 915-919 MHz | 2 W | 33 dBm |
| South America | 902-928 MHz | 4 W | 36 dBm |
| Taiwan | 922-928 MHz | 4 W | 36 dBm |
| Thailand | 920-925 MHz | 4 W | 36 dBm |
| Turkey | 865-868 MHz | 2 W | 33 dBm |
| Vietnam | 920-925 MHz | 4 W | 36 dBm |
Explanation of Table Fields
UHF Frequency Range
Represents the approved Ultra High Frequency (UHF) band for RFID use in the specified region. UHF bands are widely used in RFID due to their ability to achieve longer read distances and higher data transfer speeds.
Max Allowed Transmission Power (Watt)
Indicates the maximum permitted transmission power for the UHF band in the respective region, expressed in watts. Staying within this limit is essential to avoid interference and meet legal requirements.
Max Allowed Transmission Power (dBm)
Specifies the maximum transmission power expressed in decibels relative to one milliwatt (dBm), offering an accurate measure of signal intensity and system performance.
Advanced Concepts: Power Restrictions and Interference Minimization Techniques
Mastering regional RFID transmission regulations ensures optimal system performance and global compliance. This section introduces two fundamental concepts: Effective Radiated Power (ERP) and Listen Before Talk (LBT) techniques.
ERP (Effective Radiated Power)
ERP measures the strength of the RFID signal after considering the gain of the transmitting antenna. Higher ERP values indicate more effective transmission and greater coverage range, enhancing the RFID system's operational efficiency.
Listen Before Talk (LBT) Techniques
The LBT method enables RFID devices to "listen" before transmitting, minimizing the risk of frequency collisions and promoting coexistence with other systems sharing the same spectrum. This technique is essential for reducing electromagnetic interference and ensuring system reliability.
By applying these advanced concepts, you can maximize the efficiency, reliability, and legal compliance of your global RFID deployments.
Need help configuring your RFID system for global compliance?
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