RFID reader systems, readers, components, software and methods cause RFID tags to backscatter a combination made from at least portions of {TAIL ~ a first code} and {HEAD ~ a second code}, without transmitting any commands in the interim 
RFID reader systems , readers , components , software and methods cause RFID tags to backscatter a combination made from at least portions of { TAIL ~ a first code } and { HEAD ~ a second code } , without transmitting any commands in the interim
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH