The OmniStar® GX2-EM870 series of 1550 nm Broadcast Transmitters uses advanced optical linearization technology to provide low noise and superior distortion performance. The suite of products satisfies various applications: full band loading or split band loading, super-trunking or distribution to nodes, long-distance transport or short hops. Several different versions of the transmitter are available that are optimized for transmission system standards with 6 MHz, 7 MHz, and 8 MHz video channels.
A proprietary technique provides Stimulated Brillouin Scattering (SBS) suppression up to 16 dBm to enable long links when used in conjunction with optical amplifiers. The transmitter uses a 1550 nm DFB laser diode as a precision light source, which is modulated by an optically linearized Mach-Zehnder modulator. Use of external modulation technology eliminates laser chirp and allows designs of transport systems for distances well beyond 100 kilometers.
Enhanced with PowerPC® technology, the GX2-EM870 series introduces a new found intelligence to traditional headend equipment. The system performance is continuously monitored and a sophisticated control algorithm assures optimum performance.