The active Broadcast tag is in fact a “radio-transmitter: the transmission of the UID code can occur at regular intervals, varying from 0.5 msec to 20 sec (a setting that must be defined at the origin, also called the ping-rate).
Unlike Response technology, the tag does not have to be solicited to activate communication: this facilitates its use in cases where there are particular “barriers” (e.g., metal plates, metal grids, water) that overlap the possible communication between tag and receiver. Broadcast-type tags, for the same transmission distance, are cheaper than Response-type tags however, in contrast, they are read-only (they have the ability to store 9 bytes only the first time), have no LED light, and cannot transmit information related to battery status.
Battery life depends on the ping-rate, i.e., the time frequency of message sending.
