The test center of Jiangsu Hengxin Technology Co.,Ltd , established in 2012, was certified by China National Accreditation Service for Conformity Assessment (CNAS) with its registration number: CNAS L: 6934 in June, 2014. The center has the biggest antenna far-field test system in Eastern China at a cost of more than 3,000 million, of which the microwave chamber is 45 meters long, 20 meters wide and 20 meters high, including: shield system, absorbing materials, ventilator, dehumidifier and antenna far-field test system, and is characterized by high shield efficiency, low level of quiet zone and high precision to ensure accurate measurement of antenna radiation performance and manufacturing accuracy. The test Center is equipped with advanced testing devices, such as the Agilent network analyzer, the IM3 tester from Summitek, Japanese antenna and feeder fault detector from Anritsuand the American ETS standard dipole antenna, electromagnetic vibration shaker, Rain test room, walk-in high and low temperature and humidity test chamber, salt spray test chamber, wind load simulation test stand etc. The main test items include antenna gain, antenna pattern roundness, insulation, VSWR, PIM and high/low temperature test, vibration test, etc. It is an authoritative test center which can provide quality inspection, research and technical service of the mobile communication antenna. The test accuracy and stability of its test system came out top during the certification process of the mobile communication operators, which made the center widely recognized among the industry. Our test center has a strong team of experts, which make it possible to provide rigorous testing and technical service by the virtue of their accumulation of professional knowledge and technology. The system is undertaking more and more testing tasks during the process of product demonstration test, receiving inspection etc. Highly precise far field pattern test system provides a dependable means for new product development, while a complete range of reliability testing equipment fully ensure the product quality and performance.