Why was 125-135 KHz chosen by USAIP initially?
• We believe it is historical rather than technical. • 125-135 KHz was made available earlier and used as active tags for tracking wild animals as well as domestic animals. 13.56 MHz has become a commodity product only since 1998. • But because of the advantages explained in the previous questions, the usages and costs make 13.56 MHz RFID for animal identification and tracking much more cost effective.
