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Hub teleport at Brookmans Park, in the UK, providing dedicated quality links to businesses offices, internet cafés and ISPs throughout the coverage area. |
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Contact details: Roger H Boddy I Eng FIET FRSA MIoD By Post: Global Teleports, Brookmans Park Radio Station, Great North Road, Hatfield, Herts, AL9 6NE, England
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| The Vipersat network is now being expanded with modern
high-performance CDM570L satellite modems each with a imbedded IP routing,
to provide the interface between your LAN traffic and the satellite links
that connect remote stations to the hub and to each other. Network
management software allows the hub to set system configuration and manages
the protocol, modem, RF equipment and IP broadband networking. The satellite modems use the latest turbo products forward error correction codes (FEC) and modulation schemes and pulse shaping to produce unrivalled spectral efficiency which is just what I am looking to encourage so as to get the best value for money out of the space segment. The network management tool is called Vipersat Management System (VMS). This allows the modems to operate in dedicated SCPC mode, or if required, to share bandwidth based on application and data load. If you use the link only occasionally there is no point holding a link open all the time (and paying for it for all the time!). This effectively enables the network to better handle connection oriented applications and reduce network congestion. The VMS also allows for dynamic point to point connections to be established between remotes. For such "mesh" networking, larger remotes such as 1.2m or 1.8m diameter are recommended. The result is an economical and flexible network with bandwidth shared and directed where it is needed for any mix of IP voice, video or data traffic. Bit rates from 2.4kbit/s to 5 Mbit/s. Service area is the green area which included Europe, North Africa and Iraq (above the 10 deg elevation contour). The network image on the right illustrates the older SMR5000L or Datum PSM 4900L modem which use BPSK or QPSK modulation. We continue to offer service to anyone with SMR5000L or Datum PSM 4900L modems. In addition to example wireless laptops, as shown, you may use wireless VoIP phones. Up to 253 IP addressed devices may be connected at each site using a switch. Alternatively any number of devices may be connected if you use a local router to expand into your own private IP address space. |
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Website navigation: Back to Vipersat VSAT hub
Global teleports Ku band NSS7: SCPC-DVB-S Satellite internet access service in West Africa: Senegal, Gambia, Guinea, Mali, Sierra Leone, Liberia, Ivory Coast, Ghana, Burkina-Faso, Togo, Benin, Niger, Nigeria, Chad, Cameroon, Equatorial Guinea, Central African Republic (CAR).
► Page created 29 April 2005 Amended 4 Feb 2008 (Eric Johnston)
Copyright Satellite Signals Ltd
© 2005 all rights reserved.
