Unlike passive technology, the chip carried by the racer does not need the energy of the electromagnetic field (from the antennas connected to the RaceMeter device) to be able to send information about itself (its identifier). It has its own battery. But it is necessary to ensure that the chip sends information about its ID only in the area of the target (measured gate). This is solved by using so-called excitation wire loops that stretch across the measured gate. These loops, in the case of the active technology from Invelion that RaceMeter uses, send a 128kHz signal. Once the active chip registers this frequency it sends its ID information at 2.4GHz thanks to its own battery. The RaceMeter registers this and everything else is the same as with RaceMeter devices with passive RFID technology. As a result, active technology can also record chips that are moving at high speed – they don’t need time to charge from the electromagnetic field of the antennas.