Systems and methods utilized a wireless transceiver (5008) having a low
power radio frequency (LPRF) component (5010) that powers down to
conserve energy and powers up in response to a signal; and a second
receiver (5014) that provides the signal via line (5018) in response to
receipt of a radio frequency broadcast. The broadcast is targeted to
activate particular transceivers by including in the broadcast
identifications such as class designations, in which case the
transceivers power up and form networks. A transceiver may include one or
more identifications and may include a unique identification of the
transceiver itself. The LPRF component may be a Bluetooth radio, but in
such case the overall transceiver itself only draws about 10 to 15 .mu.A
while actively awaiting and screening for a targeted broadcast.