From how far away can a typical RFID tag be read?
The distance from which a tag can be read is called its read range. Read range depends on a number of factors, including the frequency of the radio waves uses for tag-reader communication, the size of the tag antenna, the power output of the reader, and whether the tags have a battery to broadcast a signal or gather energy from a reader and merely reflect a weak signal back to the reader. Battery-powered tags typically have a read range of 300 feet (100 meters). These are the kinds of tags used in toll collection systems. High-frequency tags, which are often used in smart cards, have a read range of three feet or less. UHF tags-the kind used on pallets and cases of goods in the supply chain-have a read range of 20 to 30 feet under ideal conditions. If the tags are attached to products with water or metal, the read range can be significantly less. If the size of the UHF antenna is reduced, that will also dramatically reduce the read range. Increasing the power output could increase the range, but most governments restrict the output of readers so that they don't interfere with other RF devices, such as cordless phones.
Related Industry Knowledge
- What makes such a respected retailer RFID?
- What are the basic working principle ?
- What are the basic components of RFID?
- What is RFID Technology ?
- What is RFID ?
- Our service
- How to make UHF wristband to be 5m read distance
- RFID casino management
- RFID Healthcare Management
- How to Use RFID to Manage yard Workflow?
- Who are the leading RFID reader vendors?
- What are some of the RFID applications implemen...
- How to Attach UHF RFID Tags
- What is ISO 18000-6?
- What is the difference between EPCglobal and EP...
- If RFID has been around so long and is so great...
- Why is EPCIS important?
- What is EPCglobal?
- What is the Auto-ID Center?
- What are the Auto-ID Labs?