Tianjin 712 Communication & Broadcasting Corp (TCB 712), established in 1936, is one of the earliest large-scale comprehensive electronic leading enterprises in China. As the first-class national enterprise and one of top 100 electronic enterprises, TCB 712 is the Pioneer of the railway train deployment radio station of China and the Homeland of Chinese VHF radio stations. TCB 712 has rich experiences in R&D and production for professional wireless communication equipment. It's the R&D and Production Base appointed by China's Ministry of Railway. And it's also the birthplaces of China's first TV set and China's first Railway Radio. For many years, TCB 712 has made multi-faceted exchanges and co-operations for techniques, OEM productions and other projects with many companies all over the world. With world-class R&D and production levels, TCB 712 can provide reliable quality assurance and good service to customers. As the key unit under our ...[More]the mobile communication Dept. is mainly engaged in the research, design, production and sale of the equipment for the civil special-purpose communication systems, Trunked Mobile Communication Systems, and Train wireless dispatch communication systems. As the birthplace of the first railway radio station, our company has already been regarded as the fixed manufacture unit of the communication equipment for railway by the Ministry of Railways. We took the lead in providing the first set of multi-based ESAS trunked systems in 1995. Up to now, we have already designed and provided more than 100 sets of Trunked Mobile Communication Systems, which are with more than 800 channels in Beijing, Tianjin, Chongqing, Liaoning, Heilongjiang, Shandong, Shanxi, Hebei, Henan, Anhui, Sichuan, Yunnan, Guizhou, Qinghai and Hainan and other places. We will try our best to open up the broader market of sale at home and abroad based on the superior products and perfect services. The digital trunked system mobile phone that our factory researches and develops independently has independent intellectual property. The mobile phones which are manufactured localized and have extremely high products cost performance, are the only independent digital trunk system mobile phones out of home solution, and meet the digital trunk system standard of China. TCB 712's AIS (Automatic Identification System) Class-B products adopt CS-TDMA technology and are fully in compliance with relevant international standards. Main features of these products are: high performance, high reliability, high integration, etc. These products have got CCS(China Classification Society) type approval certificate and CFR(China Fishing Vessel Register) product certificate. Now these products has already been successfully used in ZHOUSHAN Fishery---China's biggest Fishery, enforced installation devices by Ministry of Agriculture's fishery regulation, yacht clubs and other application areas. These usages prove that AIS (Automatic Identification System) can greatly improve the voyage safety and play very crucial role in the protection for people's property and safety. TCB 712 will always work for the innovation and development of AIS (Automatic Identification System), and provide you professional technical solutions for wireless communication. Rich research and design resources, consummate production technology and advanced production equipment make our company in the invincible position in the market competition all the time. We insist on the enterprise aim of "your satisfaction, our eternal commitment and pursuing ". We will try our best to offer the first-class service, create the first-class products, and cast the open, wide and brilliant career for tomorrow together.Your Satisfaction will always be our commitment and pursuit! Company Website: http://www.712.cn/en/