Ten new-type bird repelling systems, cited as the "king of bird repelling systems," are available in the southern ends of the Capital Airport's east and west runways.

This equipment's formal name is computational acoustics bird repelling system. It is capable of making 96 kinds of sounds and giving out nearly 100 sorts of ultrasonic; thus it earns the title of the "king of bird repelling systems."

Compared to old bird repelling equipment, birds will not easily adapt and get used to these sounds created by the new system. Therefore, the new-type system has a better effect on repelling birds.

In addition, the new-type system uses 220V power supply to control sounds and the operation is very easy, while the old one depending on solar energy is frequently affected by weather.

The signal generator of the new-type "king of bird repelling systems" can choose some very strong and fierce sounds according to different bird species, which are efficient in repelling birds but will not hurt them.

(Chinanews.cn May 26, 2005)