2020年5月27日 · Full duplex (FDX) switches allow for the simultaneous transmission of information between the switch and the endpoint. In a half duplex (HDX) system, communication flows in one direction at a time.

There are two types of duplex communication systems: full-duplex (FDX) and half-duplex (HDX). In a full-duplex system, both parties can communicate with each other simultaneously. An example of a full-duplex device is plain old telephone service; the parties at both ends of a call can speak and be heard by the other party simultaneously.

HDX ( Half Duplex) and FDX ( Full Duplex) communications protocol differ in the way in which information is transferred between the reader and the tag. With a FDX protocol, information can be transmitted from tag to reader and from reader to tag at the same time.

2023年7月6日 · The higher frequency used by HDX tags, 13.56 MHz, results in shorter read ranges but faster data transfer rates. For animal identification and management tasks that call for more specific information, like breeding, health monitoring, and feeding plans, HDX tags are frequently utilized.

Half Duplex vs Full Duplex - What's the difference? Half Duplex (HDX) tags are better able to transmit through metal interference such as metal and steel objects. Full Duplex (FDX) is good when read range is not an issue. Full Duplex tags are also available in a Lightweight (FDXLW) option and are 4 grams.

In the communication method of RFID electronic tags, we often see the terms FDX and HDX, so what exactly do they mean? FDX (Full Duplex) is full-duplex, which is a communication method that can simultaneously send and receive operations.

与全双工 (FDX)相比，HDX 通常识别能力更强，因为HDX读写器的射频场在HDX标签响应期间关闭，从而读写器可以专注于接收来自标签的信号，同时也消除了读写器射频场对标签信号的干扰。

HDX uses Frequency Shift Keying (FM) which has better noise immunity and allows larger, simpler antennas. Antennas for HDX readers are very simple loops of insulated wire that can be placed directly in the water without an air gap or frame. Antennas for …

With their higher performances, the HDX tags are found on the right hand side of the graph, while FDX tags occupy the left hand side. Activation field strengths are generally lower for HDX tags. If the slopes of the read rates are examined, FDX tags have to be increasingly closer to the antenna if consistent performance is needed.

8 HDX and 9 FDX tags from different suppliers were compared. The maximum reading distance is recorded along the horizontal scale for 10%, 50%, 90% and 100% read rates. With their higher performances, the HDX tags are found on the right hand side of the graph, while FDX tags occupy the left hand side.