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The difference between FDX tags and HDX tags


FDX (Full Duplex) and HDX (Half Duplex) are two technologies commonly used for RFID (Radio Frequency Identification) applications in animal identification and management systems. They are different in terms of their communication methods and operating frequencies, and are often used for different purposes.

RFID glass tag.jpg

FDX Technology: FDX technology is a full-duplex communication method, meaning that it allows for simultaneous communication in both directions. This means that the reader and the tag can communicate with each other at the same time, which can lead to faster and more reliable data transfer. FDX tags use a low frequency of 134.2 kHz, which provides better penetration and readability in dense environments, such as animal herds. FDX tags are often used for animal identification and tracking, as well as for access control, asset tracking, and other applications.


HDX Technology: HDX technology is a half-duplex communication method, meaning that it allows for communication in only one direction at a time. This means that the reader and the tag must take turns communicating, which can lead to slower and less reliable data transfer compared to FDX. HDX tags use a higher frequency of 13.56 MHz, which provides shorter read ranges but higher data transfer rates. HDX tags are often used for animal identification and management applications that require more detailed data, such as breeding, health monitoring, and feeding programs.


Overall, both FDX and HDX technologies have their own advantages and disadvantages, and are used for different applications based on their specific requirements. It is important to choose the right technology and equipment for the specific use case in order to ensure accurate and reliable data transfer.


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