Communications service provider Diversified Communications Inc. (DCI) and compact high-efficiency solid-state power amplifier manufacturer Wavestream Corporation have announced joint efforts to conduct live demonstrations of high-definition television (HDTV) uplinks from a mobile Ka-band terminal. The first of its kind, the demonstration will showcase the transmission of high-definition video signals over a Ka-band transponder on an Intelsat-8 satellite. The companies are conducting a series of demonstrations during SATCON 2006, Nov. 29-30, 2006, in New York City, directly in front of the Jacob Javits Center.

The demonstration features a terminal developed by DCI, which incorporates its proprietary baseband electronics and a 12 W feedmount Ka-band amplifier provided by Wavestream. Real-time simultaneous transmission of a high-definition signal will be made from a 0.76-meter aperture terminal.

"The existence of Wavestream's amplifiers was the catalyst for conceiving this demonstration," said Al Levin, president of DCI. "No other Ka-band amplifier in the world can produce the required output power in a package small enough and light enough to work with a highly mobile terminal like this one."

"Wavestream is very enthusiastic about the prospects for transmission of high-definition signals over satellite links," said Jim Rosenberg, president of Wavestream. "We are thrilled to be working with DCI, a preeminent player in remote TV transmission and pioneer in transmission of HD video, in this first demonstration of HD video transmission over a Ka-band satellite. DCI's fusion of practicality and elegance has yielded extremely compact, high-functionality equipment for controlling, processing, and encoding HD video signals."

Enabling HDTV uplinks from mobile Ka-band terminals is suitable for a number of broadcast applications including breaking news, live sporting events, and political events since they can be deployed in mobile remote settings.

DCI's transmission system, which is based on the latest software-defined radio (SDR) and RF technologies, is optimized for both HD and SD television broadcasting applications that require a small, easy-to-deploy DVB-compliant satellite uplink system that can run on AC voltages from 90 to 260 V or 12 DC derived from a standard automotive battery. In the field, this gives unprecedented deployable options because a typical car can provide the necessary power required for full-motion HD and SD transmission.