(1) Shenzhen TV Digital TV R & D and Industrialization Office started in 2003, using the platform of Shenzhen Digital TV Transmission Center to carry out DMB-T mobile digital TV trials. Channel 28, and RS
500 watt digital transmitter, RS DMB-T exciter, UBS single frequency network adapter and other equipment, constitute two DMB-T single frequency network in Wutong Mountain and Grand Skylight, DMB-T mobile reception, High definition reception,
The single frequency network is operating normally, regardless of the diversity of test content, environmental diversity, complexity, working mode and transmission rate (large span: 5.414 to 24.265Mbps), or the mobile reception range and coverage efficiency. Verified the mobile reception performance of Tsinghua DMB-T. Will soon be transferred to the operational stage.
(2) Tianjin Radio, Film and Television Group adopts DMB-T as mobile digital TV. At the beginning of 2004, it began to use the new 27CH (586MHz) analog TV channel resources and the original feeder system of the Tianjin TV Tower to achieve standard-definition digital TV program and data transmission. The realization of digital mobile TV mobile reception. Currently,
The system is being piloted in Tianjin and suburbs. 250 watts of transmit power can achieve a coverage area with a radius of 50Km up to Langfang.
(3) After careful demonstration, the Science and Technology Commission of Henan Radio and Television Bureau decided in June 2004 to adopt the DMB-T program of Tsinghua University for the open circuit trial broadcasting of wireless digital TV. The Henan Radio and Television Information Network Company was responsible for the construction and operation of mobile digital TV. Initially determine 20 channels (530MHz), and plan to build DMB-T single frequency network in 9 Central Plains urban agglomerations such as Zhengzhou. At present, DMB-T with the model of DEV1 from Beiguang has been built in Zhengzhou
A single-station system consisting of an exciter and a 1 kW transmitter and other equipment, using 182
The meter transmission tower transmits signals, covering the urban area of ​​Zhengzhou and the outer suburban areas up to Kaifeng, Jiaozuo, Xinxiang, etc., covering a radius of about 57 kilometers.
In the near future, there will be more provinces and cities to launch DMB-T wireless broadband multimedia / TV projects. At the same time, there are already several projects under intense construction and trials.
A comprehensive series of Office lightings drivers, suitable for use in a range of household Lighting applications, including livung room Lighting, Kitchen Lighting, bathroom Lighting, Entertainment Lighting, etc. We have skilled engineers to answer all your questions and enquiries and provide all-round solutions basis on your project(s) and provide technical supporting.
Specifically for household light, As long as the home for the panel lights, lamps and the like, indoor Waterproof LED Driver.Europe and the United States with the earlier, energy-saving environmental awareness earlier, widely popular.Home, then the safety performance requirements are relatively high, high voltage short circuit protection.
Parameter:
Input voltage: 100-277vac / 100-240vac / 100-130vac / 180-240vac / 100-347V
output voltage: 25-40vdc / 27-42vdc / 35-45vdc / 50-70vdc / 12Vdc / 24vdc
current: 100mA-8000mA.
Power factor: >0.9
Dimming:0-10V / PWM / RX / DALI.
>=50000hours, 3-5 years warranty.
certificate: UL CE FCC TUV SAA ect.
What's the benefits of Fahold Driver?
- Standard Linear Lighting
- Cost-effective Led Driver solution for industry,commercial and other applications
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- Flexible solution
FAQ:
Question 1:Are you a factory or a trading company?
Answer: We are a factory.
Question 2: Payment term?
Answer: 30% TT deposit + 70% TT before shipment,50% TT deposit + 50% LC balance, Flexible payment
can be negotiated.
Question 3: What's the main business of Fahold?
Answer: Fahold focused on LED controllers and dimmers from 2010. We have 28 engineers who dedicated themselves to researching and developing LED controlling and dimming system.
Question 4: What Fahold will do if we have problems after receiving your products?
Answer: Our products have been strictly inspected before shipping. Once you receive the products you are not satisfied, please feel free to contact us in time, we will do our best to solve any of your problems with our good after-sale service.
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ShenZhen Fahold Electronic Limited , https://www.fahold.com