Newtec Smashes Long-Standing 500Mbps Satellite Throughput Barrier

In the current economic climate, satellite service providers are looking to get more out of what they already have, or to do the same with less. In competition with terrestrial markets it is important for satellite service providers to always offer the best possible value to customers.

Advances in technology are making this possible.

According to Dave Suffys, Sales Support Manager, at Newtec, the company is testing one of our newest technologies, Clean Channel Technology™ (CCT), which is a potential S2 extension candidate. It consists of three things; a reduction of the roll-off factors, significantly reduced RF sideband noise and a much cleaner carrier.

CCT works by applying a smaller Roll-Off (RO) percentage than is currently used in the DVB-S2 standard. Roll-Off percentages of 20%, 25% and 35% are common. The bigger the Roll-Off, the more satellite bandwidth is needed in order to accommodate for a certain carrier rate.

Implementing low Roll-Off factors allows for carriers to be spaced more closely to each other. Of course the sidelobes of these carriers will then create interference into the neighbouring carriers. Therefore reducing the Roll-Off alone is not enough, the slidelobes need to be suppressed even more, this is where Clean Channel Technology (CCT) comes into play. With CCT one can reduce the Roll-Off to as low as 5%, increase the carrier rate in the same bandwidth and place carriers closer to each other without any degradation.

Needless to say that when breaking a barrier another one comes into sight. With the upcoming extensions to the DVB standard which will enable even higher modulation modes and symbol rates plus new and more powerful satellites to be launched, Newtec is now aiming at the 1 Gbps barrier. Its recently launched new platform certainly has got the power under the bonnet.

Source: http://cablequest.org/news/technology-news/item/852-newtec-smashes-long-standing-500mbps-satellite-throughput-barrier.html
Source: http://cablequest.org/news/technology-news/item/852-newtec-smashes-long-standing-500mbps-satellite-throughput-barrier.html