The company is mainly engaged in the research and development, production and sales of microwave RF products and wireless communication network optimization coverage system, and provides corresponding services. It is a professional supplier and system integration service provider of wireless network coverage equipment for mobile communication operators, mainly producing wireless co-frequency/frequency shift repeaters, optical fiber transmission repeaters, base station amplifiers, trunk amplifiers, passive microwave devices, antennas, professional software and network management monitoring products. 20 1 1, 1 February, the company raised funds to invest in "system integration and technical service expansion project", "radio and television digital mobile multimedia repeater launching equipment industrialization project" and "technology research and development center expansion project", with a total investment of 236 million yuan; It is estimated that after the industrialization project department of radio and television digital mobile multimedia repeater is put into production, the annual sales income can be 940 1.438+0 million yuan.
Three-dimensional communication (002 1 15)
The company is mainly engaged in the production and sales of wireless network optimization coverage equipment, and provides wireless network optimization solution services for mobile communication operators. The company's digital TV co-channel repeater equipment has been successfully piloted in Beijing, Shanghai, Chongqing, Shenzhen, Qingdao, Zhengzhou, Hangzhou and Singapore. The project has been included in the first batch of projects of the electronic information industry development fund and will become another important business field in the future.
Three yuan da (0024 17)
The company is a leading supplier of wireless network optimization coverage equipment in China, providing customers with system integration services and related professional outsourcing maintenance services. At present, the products cover China GSM and all 3G standards, and are applied to mobile communication networks, broadband wireless networks and digital TV wireless networks. The PHS communication products, CDMA repeater and GSM repeater developed and produced by the company were rated as "high-tech products with the most market value".
China Digital Communication (000 156)
China Digital Media has the largest digital program content media resource pool in China, the largest interactive TV content provider in China, the largest 3G mobile TV content provider in China, the local cable digital TV network operation platform and the main interactive TV operation service platform facing the whole country. China Digital Media has an IPTV operation license, and is the first in China to obtain a national integrated operation license for 3G mobile TV, and is vigorously promoting strategic cooperation with major communication operators in 3G mobile TV business.
Digital Video (300079)
Ali will release the iconic Internet product-Ali "Box" in Beijing today (23rd). Previously, it was officially announced that China Digital Media, which was developed with Ali * * * "Box", ushered in a four-day surge. China Digital Media said that the profit model of Internet TV is still in the exploratory stage, and investors should invest rationally and pay attention to risks. In fact, as early as July 18, on the interactive platform of Shenzhen Stock Exchange, China Digital Media has indicated that Ali Box will access the company's Internet TV integrated broadcast control platform and video content cloud platform.
Jinya Technology (300028)
Since its establishment, the company has always followed the world advanced level and adhered to the business philosophy of "striving for leading technology and creating first-class brands". By introducing absorption and independent innovation, the company has the ability and practical experience of end-to-end design, integration and engineering construction of digital TV systems. Products cover: digital TV front-end series equipment (digital TV encoder, multiplexer, QAM modulator, scrambler, ts stream repeater, etc. ), cable TV bidirectional network equipment (EPON front-end and terminal equipment, EOC head-end and terminal), digital TV operation support system (unidirectional and bidirectional CAS, SMS/BOSS, EPG, etc. ), digital TV value-added service platform, and a full range of digital TV set-top boxes.
Tongzhou Electronic (002052)
The company attaches great importance to research and development, implements a high starting point development strategy, and adheres to the development path of independent innovation. The company is a national innovation pilot enterprise, with the largest digital video professional R&D team of more than 2,000 people in China, equipped with the most complete digital TV R&D, testing and industrialization equipment in China, and established an interactive digital TV engineering technology research and development center with the special support of Shenzhen Municipal Government. In addition, it has also established cooperation with famous universities and research institutes to undertake research and development tasks such as national scientific and technological research and national new products.