VSAT

VSAT is a way of providing better connectivity to the internet or for private satellite communications networks. In areas where there are unreliable communication networks, the sales of VSAT is growing. Depending on bandwidth requirement (data speed and/or communications channels), VSAT systems can be relatively small (1.2 to 2.4 meter antenna) and easily installed. By linking VSAT terminals to larger hub stations (or land earth stations), a wireless network can be established at relatively low costs.

How does VSat work? 

A VSAT is a small fixed or mobile system which provides a communication link to a satellite which can handle data traffic. Depending on which satellite is used, the signal will be transmitted to a particular earth station with a direct link to an Internet backbone. This means that even in countries which have no direct access to these backbones (like many African countries), with system a one-stop (one hop in technical terms) connection to the main data routes of the Internet can be established. VSAT systems offer value-added satellite-based services capable of supporting the Internet, data, LAN, voice/fax communications, and can provide powerful, dependable, private and public network communications solutions. A VSAT has certain clear advantages over leased lines and other wireless communications media, as it is less sensitive to physical damages like cable breakages etc.

SatComm offers two VSat business options, either a Shared bandwidth or Dedicated bandwidth solution.

Shared Bandwidth

IP Access has been tailored to provide shared, premium Internet connectivity to companies or local and regional administrations, regardless of their location and the terrestrial infrastructure available, anytime, anywhere.

The ideal solution for: Small or medium-sized businesses Regional or rural communities Schools or educational institutions

IP Access is optimised for web navigation, with transmit speeds of up to 1 Mbps and receive speeds of up to 2 Mbps. The service can also be used with other Internet standard applications such as e-mail, fast file transfer and download.

The comprehensive IP Access service includes space segment, and high-speed, bi-directional Internet access for a fixed monthly subscription. Several off-the-shelf packages are available depending on bandwidth capacity needs, the number of PCs connected and application needs.

The equipment used to receive the IP Access service consists of a fixed, small antenna and an indoor unit, which can be connected to a local area network, or used in combination with other technologies such as WI-FI, PLC, etc.

Key benefits 

World-wide availability - Independent of terrestrial infrastructures.

Rapid deployment - Any site within the satellite coverage can be connected to the network in a few hours.

Cost effective and reliable solution - With guaranteed Quality of Service.

High-level of backbone connectivity

Technical specifications

Shared connectivity - Transmit speeds of up to 1 Mbps and receive speeds of up to 2 Mbps.

Star topology network - Management of network performance through shared IP hub.

Return channel efficiency - Enhanced with evolution to DVB-RCS Turbo coding

Dedicated Bandwidth

IP Connect is a reliable, flexible and high-performance two-way satellite solution offering dedicated and guaranteed bandwidth, designed specifically to your company's or closed user group's requirements, allowing you to service your enterprise sites or to create virtual private networks.

The ideal solution for: Corporations Remote offices Cyber-cafes WI-FI hot spots Educational institutions

A tailored solution

The service is tailored to customers' needs and capacity requirements, providing a traffic typically from 64 kbps up to 1024 kbps in the upstream and from 64 kbps up to 8 Megabit/s in the downstream. The main advantage of IP Connect is its flexibility. Customers can define their own contention ratio and quality of service parameters for sub-groups within fixed capacity contract purchased. Prioritisation can also be done by protocol, IP address, etc.

The equipment used to receive the IP Connect service consists of a fixed, small antenna and an indoor unit sold under the D-Star brand name, which can be connected to a local area network, or used in combination with other technologies such as WI-FI, PLC, etc.

Key benefits

World-wide availability - Independent of terrestrial infrastructures.

Rapid deployment - Any site within the satellite footprint can be connected to the network in a few hours.

Cost effective solution.

Guaranteed quality of service.

Efficient and flexible use of bandwidth - The bandwidth can be dynamically shared among closed-user network points, if desired.

Service provider customisation - Offer can be tailored to end-client's specific requirements, within service provider's same capacity contract.

High-level of backbone connectivity.

Technical specifications 

High speeds on the forward and return link - Up to 8 Mbps in the download stream and up to 1024 kbps in the upload stream.

Fully interactive satellite IP terminal - It can be connected to a Local Area Network (LAN) or used in combination with other technologies such as WI-FI, PLC, etc.

Star topology network - Virtual management of bandwidth specified by service provider on centralised hub.

Open standard: evolution to a DVB/RCS satellite protocol.

Asymmetric Full Duplex transmission.

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