Anti-radiation missile was achieved by the SAM site's radar receiver locking on to radio noise emissions generated by an aircraft's jamming pod. In cases of heavy jamming, missiles were often launched exclusively in this mode; this passive tracking meant that SAM sites could track targets without needing to emit any radar signals, and so American anti-radiation missiles could not be fired back in retaliation. Recently, the People's Republic of China developed the FT-2000 system to counter AEW and AWACS targets. This system is based on the HQ-9, which is in turn based on the S-300PMU. These anti-radiation missile systems have been marketed
A Moving Sound of the human condition." A Moving Sound has attracted international attention for opening doors to the under explored territory of Far Eastern music. The group is intensely passionate about how it presents the use of traditional instruments in its contemporary sound. Their approach is to be holistic – combining art, spirituality, social awareness, and a universal love of humanity play key roles in the creative process. According to Tom Pryor, music supervisor for National Geographic, "A Moving Sound is one of the most original outfits working in the world music arena today, an inspired marriage of Taiwanese traditional sounds and