The RACT is a radio active tag, operating at 433 MHz in GFSK modulation (Gaussian Frequency-Shift Keying). The remote transmits continuously with a period of 1 sec. A special algorithm adds to the rated time period a small slot, realizing, in this way, an anticollision system, which avoids the overlapping of the RF signals of many remotes when standing simultaneously in the same field.
The remote active tag is equipped with a tri-colour LED that gives you the status of the battery (it flash every 5 radio transmissions).