Fully integrated Adaptive Coding and Modulation (ACM) provides bandwidth gains, increased data throughput and simplified network management over standard DVB-S2 solutions

Herndon, Va., 30 July 2007 – iDirect Technologies (iDirect), a company of VT Systems Inc., today announced that it will implement a DVB-S2 product line with Adaptive Coding and Modulation (ACM) fully integrated within its system architecture that will support the DVB-S2 digital broadcast standard.  iDirect’s next-generation satellite communications platform, available in the fourth quarter of 2007, will provide its customers with dramatic bandwidth efficiency improvements. Based on an extensive nine-month test program, iDirect’s DVB-S2/ACM technology was determined to achieve consistent bandwidth gains of 50 percent or greater over non-ACM offerings according to typical network profiles.

In creating the industry’s most advanced DVB-S2/ACM system, iDirect has designed its integrated ACM solution from the ground up, not superimposing it on a pre-existing DVB-S2 system.  All current and future iDirect technologies will be overlaid on iDirect’s next-generation platform, which will optimize ACM performance and maximize the benefits of DVB-S2/ACM throughout all features of iDirect’s platform including Group Quality of Service (GQoS), encryption and its Network Management System (NMS).  iDirect’s DVB-S2/ACM will deliver unique advantages such as:  

  • More efficient bandwidth utilization: iDirect’s ACM technology enables each remote to operate at the most efficient coding and modulation scheme dependent upon its location within the satellite contour, antenna size and current weather conditions. In addition the highest information rate possible on the outbound carrier offers the benefits of single-carrier transponder saturation. This provides network operators the flexibility to dramatically save on bandwidth, increase data throughput or expand their networks.
  • Real-time monitoring to maximize ACM gains: iDirect’s ACM system automatically provides real-time information to the hub regarding how well the outbound link data is being received by the remote.   The hub then, on a site by site basis, adapts the specific modulation and coding scheme to adjust for any degradation of the data link to each remote, and provides data to iDirect’s NMS for the network operator to see the ACM benefits in real time.
  • Simplified network design: To configure the ACM system, a network operator simply chooses the worst-case link budget within the network that would be used in a CCM system. iDirect’s ACM system then automatically exploits the clear-channel margin for each individual remote in the network. 
  • An effortless upgrade path: iDirect’s system leverages existing iDirect iNFINITI hubs, eliminating the need for costly, full-network upgrades to realize the total benefits of DVB-S2/ACM.

“iDirect is introducing a superior approach to DVB-S/ACM that will leapfrog existing offerings. We are providing customers with an intelligent upgrade path to DVB-S2/ACM, leveraging their existing investment in iDirect’s network infrastructure. Our customers will have the best technology available and the simplest approach to our next-generation platform.”

Chief Technology Officer, iDirect

To support DVB-S2/ACM, iDirect will unveil a new line of remote satellite routers and line cards as well as software upgrades to iDS including NMS that will be compatible with iDirect’s existing hub infrastructure. For more information, please visit  to view iDirect’s CTO Webcast.


iDirect Technologies, a company of VT Systems Inc., designs, develops, and markets satellite-based broadband access solutions targeted at the enterprise, government, carrier and educational sectors that have the need for fast, flexible, and geographically dispersed two-way internet/intranet access. The company has developed technology solutions that combine high performance, worldwide availability, and ease of installation, high reliability, and low cost to end customers. In addition, iDirect solutions offer unprecedented efficiencies, increased revenue opportunities and higher per customer gross margins to satellite network operators. iDirect was awarded the 2005 World Teleport Association Teleport Technology of the Year, the Innovation & Technology of the Year by The ISCe Advisory Board, and named number one in the Deloitte & Touche Virginia Technology Fast 50 list of the fastest-growing U.S. technology companies. iDirect operates its corporate headquarters in Herndon, Virginia and has regional offices in Europe, Asia, and covering Latin America. Additional information is available on the company website at

VT Systems Inc., and its subsidiaries are preferred providers of engineering solutions, products, integrated systems, and services in the Americas across the core business areas of marine, aerospace, electronics and land systems. Headquartered in Alexandria, Virginia, VT Systems operates throughout North America and offers a broad range of proven innovative services to both the commercial and government sectors. VT Systems is a wholly owned subsidiary of Singapore Technologies Engineering Ltd. Please visit

Media Contacts: 

John Severance
Sheffield Marketing Partners for iDirect
Phone: 630-281-4097

Julie Gouldin
Vice President Corporate Marketing
iDirect Technologies
Phone: 703-648-8155

Carol Hrovoski
Corporate Communications Manager
VT Systems Inc.
Phone: 703-739-2610