How is the NaviTag CTU different from RFID?
RFID (radio frequency identification) requires a network of terrestrial based readers to report location and security information. The RFID tag is placed on the container and when it is driven past a reader it records the event, the time and the security status. Typically it has to be within 100 yards and traveling at a slow rate of speed to record the tag information. The difficulty is that you only receive information when a tag passes a reader and between readers there is no information available. Building a network of readers throughout your supply chain is expensive and you may have difficulty receiving authorization to place a reader at all the locations you wish to receive status information. The NaviTag CTU does not require any readers because it communicated through satellite transmissions. You receive more information, more often without the cost of a reader network.
