ATLANTA: Cable TV equipment vendor Scientific Atlanta has developed a new system that it says significantly increases bandwidth efficiency.

The PowerVu(r) advanced modulator (model D9390T) with 8PSK Turbo Code will increase bit rates, which is used to expand the number of channels that can be delivered by a single transponder, an official release says.

Scientific-Atlanta claims the new system will help companies offer more digital services and programming, such as HD and IP data, while also conserving bandwidth.

In a performance comparison conducted by Scientific-Atlanta, changing from QPSK to 8PSK using Turbo Code in an existing network, throughput was increased by more than 30 per cent. This frees up more transponder space for additional programming, or even may allow the programmer or broadcaster to lease the extra space to generate more revenue, the release says.

When combined with the PowerVu professional receiver (model D9224), the PowerVu advanced modulator will deliver a powerful end-to-end solution for maximizing bandwidth and significantly lowering the cost of delivering more digital programming.

The PowerVu professional receiver is one of a series of Scientific-Atlanta MPEG-2/DVB digital compression products designed for broadcast and professional applications requiring 4:2:0/4:2:2 decoding. The receiver offers features such as the capability to receive digitally encrypted video, audio, utility data, IP data, VBI, teletext and conditional access.

Click here for more TV Technology Update