Advantech Wireless, a world leader in satellite communications, offers the world’s leading two-way open standard MF-TDMA (DVB-RCS) broadband satellite access system. Our DVB-RCS Hub, and in particular its Return Link Sub-System (RLSS), is at the heart of the broadband access system. The RLSS is a modular hub sub-system which can be integrated with new or installed IP/DVB broadcast platforms and IP switch/routing equipment to provide two-way satellite broadband access services.

The RLSS is designed to receive inbound traffic, handle inbound and outbound signaling, schedule and control networks of satellite interactive terminals (available from multiple suppliers). A single scalable RLSS unit can support networks ranging from just tens to 500 of simultaneously logged-on terminals.

The Raptor series of transportable hubs are turn-key systems which can be deployed in less than 1 hour, to enable a wide range of public and/or private network topologies with DVB-RCS satellite interactive terminals.


  • System is WGS certified
  • Up to 200 Mbps outbound
  • Up to 32 Mbps RL capacity
  • Up to 24 inbound MF-TDMA carriers, up to 12 Mbps per carrierDVB-S2 CCM/VCM/ACM outbound maximizes bandwidth efficiency
  • Optimized for IP, VoIP, video-on-demand and multi-media content
  • Open standard design (DVB-RCS)
  • Unique and powerful multi-carrier demodulation technology
  • World-class scheduling efficiency, maximizing bandwidth utilization
  • User-friendly Network Management System (NMS)
  • Mesh Overlay (peer-to-peer) optional capability
  • Always-on
  • Quick deploy of hub for emergency networks or field operations
  • Interoperable with 3rd party SatLabs certified terminal vendors or any DVB-S2 SCPC modem

System Versatility

Advantech Wireless’ Hubs and Terminals are highly flexible; several different network architectures are possible. Some key features of this DVB-RCS system include:

  • Frequency independent – hubs, terminals and onboard processors operate in WGS X-band and Ka-Band and also in Ku-band.
  • Satellite versatility – the system can operate with the forward and return link on the same satellite, or on different satellites.
  • Terminal diversity – networks can support GBS receive-only terminals at the same time as two-way terminals.
  • Supports both mesh and star network topologies.

Advantech Wireless’ entire system, as well as the DVB-RCS standard, has been designed to minimize the cost of scaling a broadband access network from terminal populations from a few terminals to tens of thousands.

Performance of access layer protocols is highly dependent on traffic profile. Advantech’s implementation of DVB-RCS, utilizing dynamic timeslot assignment techniques mandated in the DVB-RCS specification, has been specifically designed and tuned for multi-media traffic and video imagery. In comparison, other VSAT systems are less dynamic and less flexible.

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