CEKE has the long-term good R&D cooperation relationship with the China North Industries Group 206 Institute, Guilin Institute of Automation Technology, Beijing University of Posts and Telecommunication, Guilin College of Aerospace Technology. With maintenance capability of most of the global communication MMDS UHF/VHF wide frequency band equipment, mobile base station, repeater and wireless bridge, CEKE now undertake the imported mobile communication equipment maintenance business for more than half of all the China's provinces. With the capability of the research, design, production, installation, system integration, network planning of digital microwave transmission equipment, digital-analog compatible MMDS transmitter, terrestrial digital TV transmission system equipment, CEKE is an industrial leader especially in product and service quality.

 

 

    Aiming at the existing problems in DTMB terrestrial digital TV network construction, CEKE carried out a technical research, successfully launched the first terrestrial digital TV broadband transmission system in June, 2008. Now, the same kind of wide frequency band system projects have been opened up and operating more than 40 stations, 5 multi-channel single-frequency network system, with its mature technology, stable system, and significant performance, CEKE's solution has become the best wide band frequency  transmitting network construction solution. 

 

 

 

Wide Band Frequency  Transmitting Technique Profile

 

Wide Band Frequency Transmitting System

Wide band frequency  transmitter is the latest breakthrough based on transmitter manufacturing technology, the technology is based on undertaking a series technology of single channel transmitters, by improved and optimize the technical index like equipment noise figure, the phase noise, frequency accuracy, the shoulder, etc. So as to meet the need of wide band frequency  transmission (equal or more than 100 MHz). This solves the technical problem that can not realize adjacent channel transmission because of the technical limit of high-power combiner, not only save the cost of transmitting power, but also improve the utilization rate of frequency. Meanwhile it is convenient for the construction of M-SFN network.

The advantage of wide band frequency  transmitting system

System brief and low cost.
One transmitter can transmit 12 within the radio and television adjacent frequently channel, system cost is reduced by more than 50%.
Low noise and high efficiency.
The noise figure of the low noise design transmitter is less more than 9dB compared with single channel transmitter, meanwhile no need of multiplexer, the total insertion loss reduce 2-3dB, it makes the effective power transmitted from the antenna terminal improve multiply.
Low power and low power consumption.
One wide frequency band transmitter can replace multiple single-channel transmitter, and the system power decreases by N times, power consumption saving N times (N=channel number)
Adapt to frequency bandwidth, easy and convenient for frequency adjustment.
The last stage power amplifier of the wide frequency band transmission system adapt to frequency bandwidth(equal or more than 120MHz), the user can adjust and change the transmitting frequency at any time when need to adjust and optimize the network.

 

Our Capacity

Emulational Software of Terrestrial Digital TV Coverage Planning
Our company uses the latest simulate coverage calculation software, it can calculate the transmitting station’s coverage effect by factors such as terrain, landform, reception antenna height, earth curvature, etc. Meanwhile, simulative activeshade process and formed visual coverage effect diagram, it can show anyone transmitting station coverage effect, offer scientific basis for networking plan.

The Best MMDS UHF/VHF Wide Band  Frequency Terrestrial Digital TV Transmitter Manufacturer in ChinaThe Best MMDS UHF/VHF Wide Band Frequency  Terrestrial Digital TV Transmitter Manufacturer in China

 

 

 

 

 

 

 

Excellent System Integrated Capacity

1.Ten year system project experience
The company has been devoted to r &d, production, maintenance and engineering application of radio and television transmitting equipment, wireless communication transmission equipment. We have abundant technical accumulation and practical experience in mobile communications, digital microwave communication and broadcast TV transmission system.

2.Abundant Industry Cooperation Ability
Take the transmission system as the core, form long-term and stable relationship in the upstream and downstream industrial chain and numerous manufacturers and suppliers, to meet the maximum requirement of customers.

3.Numerous Successful Cases Across the Nation

We have successful cases of wide band frequency  transmission system around the world just like Mongolia, Nigeria, Uganda, Laos, Sri Lanka, etc.

4.Standard System Integrated Capacity with High Quality
Based on the rich experience accumulation, and the leading core products, the profound understanding of standards and the precise understanding of customer need, our professional service team formed system integrated ability with a high quality, high price-performance ratio, accord with standard requirement and distinct features. Especially in terrestrial digital TV wide band frequency  transmission system and M- SFN networking aspects distinctly our own, and it is in the industry leading position.


Business Dept.(Overseas Projects)skype:

              Peter     Mike
           Jennifer Monica

Tel:(+86-773)-2120156