Signal Transmission and Management
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RF over Fiber refers to technology that modulates light with a radio frequency signal for transmission over an optical fiber. All our RF-over-Fiber products feature modular flexibility and open paths scalable for future needs.
Access network equipment for HFC and FTTx applications. Discover MODULO HFC, the modular cable headend platform, D-CCAP Solutions for DAA Networks, and our CMTS powering solutions for cable network operators.
DEV offers a range of matrix and redundancy switches, as well as de-/multiplexers. Beside custom configurations, we provide our flexible switching systems in different sizes, for L-Band and CATV Frequencies.
DEV Systemtechnik is collaborating with satellite, teleport, earth-station operators and systems integrators to offer superior RF solutions serving the needs of these clients. The full portfolio for RF-over-Fiber and coax is available to control RF signal reception and transmission requirements in satcom applications worldwide.
Since 1995, DEV Systemtechnik has been developing RF solutions and products for the global broadcast and cable industry. All of our products are designed for operation in multiple frequency bands and impedances to meet the demands of broadcasters and teleports. Our total portfolio for RF-over-Fiber and coax can manage RF signal reception and transmission requirements worldwide in the broadcast and cable industry.
DEV offers a wide range of DOCSIS 3.1-ready equipment for HFC and FFTx cable network operators. Our product portfolio includes MODULO HFC, the modular HFC Headend Platform, as well as solutions for Distributed Access Architecture (DAA) networks. Discover our Distributed CCAP Products as well as solutions for powering a CMTS.
To meet current and future stipulations for government, military and maritime satellite operation, DEV has developed a series of RF Transmission Products such as Matrix Switches tailored for RF performance, size and price.
We offer customized “Ka-Band-ready” arrays for various functions and frequency ranges useful in the government and military segments.
Sojitz Corporation Becomes New Exclusive Partner of DEV Systemtechnik in the United States and Canada
Articles & White Papers
Etisalat, one of the largest telecommunications companies in the world and the leading operator in the Middle East and Africa, wished to expand an existing CATV head-end in UAE by adding a 700-channel IPTV system. The order to supply the system went to the Chinese telecommunications group Huawei. For the critical system segment from the antenna to the receiver, Huawei relies on products and services of DEV Systemtechnik.
One of the biggest telecom service provider in Vietnam, who had plan to build up a Cable TV network nationwide, including a main head-end in Hanoi plus over 700 Sub head-ends along the country. The Hanoi head-end receives signal from satellite antenna dishes with dual-Pol and IP contribution, and at each Sub head-end delivers both digital and analogue cable TV signal over GPON network.
“RF over Fiber” refers to technology that modulates light with a radio frequency signal for transmission over an optical fiber. All satellite ground stations and teleports must have an effective transmission method for RF signals linking antennas, signal management equipment and wide-ranging equipment centers. Beyond traditional copper or coax, current “state-of-the-art” installations are best served by fiber-optic links.
State-of-the art satellite communication systems at the highest data rates are operated on the Ka-Band. As transmission quality on Ka-Band frequencies is heavily dependent on weather conditions, suitable system configurations need to be carefully planned and chosen. Ka-Band Site Diversity configurations relying on DWDM RF-over-Fiber transmission systems and redundancy switching units represent best-suited solutions and ensure maximum system reliability and system availability.
The customer is looking for a RF signal management solution for a new IPTV head-end. In order to reach maximum availability the IPTV head-end will receive the satellite signals via two Diversity Antenna Sites (~80km distance between the sites). The RF signal management solution needs to ensure reliable transmission, selection, switching and distribution of the antenna signals.