PPK Technology Introduced a Radio Frequency (RF) based traffic synchronization known as Greenwave linking. Greenwave linking works on a principle of RF based communication. RF based Greenwave Linking System is designed to works on Vehicle Actuated (VA) System. RF based communication is wireless based communication that work in a frequency range of 10Khz to 300Ghz. RF Module send and receive signal using the ISM band at a frequency of 2.4GHz. The range of RF module is up to 2Km outdoor line of sight. Using a high gain antenna, extended range higher than 2km can be obtained.