Our uplink systems transmit audio and data to orbiting satellites, which in turn, broadcast the signals to large regional audiences. Whether for television or digital radio applications, SED's uplink systems provide flexible, reliable service to the broadcast industry.

WorldSpace Feederlinks

We provide WorldSpace Corporation with Processed and Transparent Feeder Link Stations for use in their satellite distribution of digital radio programming. These stations handle a variety of industry-standard interfaces and are available in single chain or redundant configurations to satisfy all requirements.

The system consists of an RF terminal unit, located at a broadcast studio or at a remote transmission location, and a baseband processing unit. Several antenna sizes and transmitter powers are available. The system features a flexible Windows-based user interface allowing the operator full control of system configuration and reporting. Modular design ensures that future expansion is easy.

XM Satellite Radio

SED has also provided the Uplink Delivery System (UDS), and the Uplink Authorization System  (UAS) to XM Satellite Radio.   The UDS encodes over 170 channels of audio and data content using custom software running on IBM servers under Linux OS, and multiplexing and uplinking these channels to the two XM geostationary satellites.  The UAS creates authorization streams to activate and administer radios over the air.  These systems are deployed at XM headquarters in Washington, DC, and at the backup facility in Atlanta, Ga.

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