The Web-Sat DVB S2 development project has now been concluded successfully. ATiT staff supported Web-Sat in the management of this project which begun in June 2006, testing and piloting with the service have been on-going since July 2007 and were completed at the end of February 2008.
As a result of this development project, the forward link has been upgraded to the DVB-S2 standard, leading to an immediate increase in capacity and the potential for future increases using the ACM (Advanced Code Modulation) option. Suitable DVB-S2 data receive cards have been sourced and satellite trials performed successfully to date using 8PSK modulation. The return link has also been upgraded with the development of a new transmit card. The new transmit card employs a digital signal processor (DSP) and provides greater flexibility in terms of the supported modulation schemes (BPSK, QPSK, 8PSK etc..). It has been designed so that software/firmware upgrades can be easily applied when new features are required.
One of the key advantages of the development is that the new transmit card’s firmware can be upgraded remotely in a matter of seconds to add new features such as SCPC (single carrier per channel) mode.
These developments have been integrated into the overall service chain to include all the necessary software services necessary to operate a full end-to-end service. Further information, contact firstname.lastname@example.org