Medium Power DTV Transmitter With 1+1 Redundant Exciters / Preamplifiers

Medium Power Air Cooled UHF Terrestrial DTV Transmitter

Product overview

Gospell’s GT-5900-1600 is a medium power air cooled UHF terrestrial DTV transmitter which combines up to four power amplifier modules with a maximum 1600W of output power. It has superior performance and enhanced efficiency by adopting a series of technologies. It can work in any frequency within the UHF span, and the transmitting bandwidth can be up to 80MHz.

This series of products has an optimized design in forced air cooling and architecture, with lower noise, higher efficiency and outstanding anti-interference performance; GT-5900-1600 series can support a wide range of Digital Terrestrial Television (DTT) standards, such as DVB-T/H, ATSC, DTMB, ISDB-T/T_b and even the latest DVB-T2 standards.

By incorporating our latest technologies of linear and non-linear digital adaptive pre-correction, RF delay and co-channel interference rejection, this system fulfills the needs of single band or broadband transmission in medium to large-scale terrestrial coverage scenarios.

Main Features and Benefits:

High Performance

Supports up to 2500W of digital output power for DVB-T/DVB-T2/ISDB-T standard

Up to 3000W of digital output power for DTMB/ATSC standard

Optimized structure design, with lower noise, higher efficiency and outstanding anti-interference performance

High Flexibility and Stability

Modular design across the whole system, easy installation, maintenance and upgrade

Optional 1+1 redundant exciters and Preamplifiers

Multiple protection mechanisms are introduced for over load, over temperature, over current and high VSWR

Large and dynamic Auto Gain Control (AGC) circuit ensures stability of output power

Improved power efficiency thanks to linear and non-linear Digital Adaptive Pre-correction

High Adaptability and Availability

Suitable for different contries and/or areas because multiple DTT standards are complied with, including DVB-T, DVB-T2, ATSC, DTMB and ISDB-T/T_b

Available in single and three phase power grid environments to meet different requirements of deployment

Wide range of working frequency from 470MHz to 860MHz

Lower CAPEX/OPEX

Improved ratio of cost to performance, lower CAPEX for operators

Low power consumption with high efficient LDMOS amplifiers to reduce electricity cost for operators

Reduced investment in manpower, benefits from convenient local monitoring and management through built-in touch screen display or remote monitoring via SNMP network management and/or telcom wireless network

User Friendly Monitoring Interface

Built in color TFT LCD with touch screen in the front panel, supports monitoring & control of working states and any malfunction on any module without additional testing/monitoring equipment required, such as transmitting power, VSWR, working voltage/current, fan speed, IP address and so on.

Block Diagram:

Technical Specifications:

For More Information

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     Gospell Digital Technology Co., Ltd. (Stock Code: 002848) is a high-tech enterprise in the field of electronic information. It is recognized as a "benchmark enterprise in the electronic information industry" and a "key high-tech enterprise of the National Torch Plan" in China. It is a leading enterprise and backbone enterprise in the broadcast television transmission and satellite transmission service industries. Additionally, it is a leading enterprise in the electronic information manufacturing industry in Hunan Province and is internationally renowned as a brand enterprise. It is also recognized as a nationwide contract-abiding and trustworthy unit and a Chinese quality and integrity enterprise. The company was established in 1993 and founded Chenzhou Gospell Digital Technology Co., Ltd. in 2001. On February 13, 2017, it was listed on the Shenzhen Stock Exchange. In 2020, Weifang Bincheng Investment Development Co., Ltd. became the controlling shareholder of the company, with the Weifang State-owned Assets Supervision and Administration Commission becoming the actual controller of the company. The company is headquartered in Gospell Industrial Park, Suxian District, Chenzhou City, Hunan Province. It has eight wholly-owned subsidiaries: Chengdu Tongcy Digital System Co., Ltd., Chenzhou Gospell Digital Technology Co., Ltd., Chenzhou Gongtian Electronic Ceramic Technology Co., Ltd., Chenzhou Gospell Precision Manufacturing Co., Ltd., Gospell Digital Technology (Shandong) Co., Ltd., Gospell Digital Technology Hong Kong Co., Ltd., Gospell Digital Technology India Subsidiary, and Shenzhen Qianhai Xutian Communication Co., Ltd. It operates one production base, consisting of five major workshops: SMT workshop, DIP workshop, assembly workshop, injection molding factory, and hardware factory, with a total of 45 production lines.

    As a national high-tech enterprise, Gospell boasts a sophisticated technology R&D matrix and has mastered more than 20 core technologies in the audio and video field. Several technological innovations have been recognized as "national key new products" and "provincial-level scientific and technological achievements," and have received the "Hunan Province Science and Technology Progress Award." As of December 2023, the company has undertaken eight provincial-level and higher scientific and technological achievement transformation projects. It holds over 65 intellectual property patents, including 52 invention patents, 9 utility model patents, and 4 design patents. Additionally, Gospell has secured 117 computer software copyrights.

   We commenced our overseas operations early, embarking on digital television system construction in international markets as early as 2004. To date, we have constructed over 200 ground and cable digital television systems, exclusively supplying core equipment, in more than 60 countries across Asia, Africa, Latin America, and Europe.