(HDD and Dual Antenna System compatible)
The Texas Instruments half duplex 134kHz transponder is a little miracle. The ‘battery-less’ internal circuit derives power from the electromagnetic field generated from a special antenna in the mat.
After powering the transponder up, the mat antennas listen for the transponders unique tag code transmission. This is achieved in 50 milliseconds in all environmental conditions. Transponders can even be read under water!
The transponders are embedded in a tough plastic housing so that they cannot be damaged. The housings are either threaded onto a soft neoprene ankle band or can be tied onto the shoelace.
The whole neoprene ankle band weighs less than 15g and is barely noticed by the athlete whether they are swimming, running or cycling. Many years of research and development have led to a neoprene band that causes absolutely no chafing.
Transponders have proven over the years to be extremely tough and reliable. This re-usable nature has made these tags very popular.