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“read range”
read range
1. The distance from which a reader can communicate with a tag.
2. The maximum rate at which data can be read from a tag expressed in bits per second.
Active tags have a longer read range than passive tags because they use a battery to transmit signals to the reader.
With passive tags, the read range is influenced by frequency, reader output power, antenna design, and method of powering up the tag. Low frequency tags use inductive coupling, which requires the tag to be within a few feet of the reader.
This entry is located in the following unit:
Radio Frequency Identification (RFID): Definitions
(page 8)