Five Compelling Reasons to Go With SurfBeam®

The SurfBeam® approach to satellite networking offers five major benefits over other systems, allowing us to change the price/performance paradigm for consumer/SOHO satellite Internet access via satellite.

Lowest Bandwidth Costs/Highest System CapacityAdvanced modulation and turbo codes are combined with powerful, dynamic fade mitigation techniques to give your bandwidth the ability to carry more bits. Compared with the current DVB standard, these features result in a capacity 100% to 150% higher per transponder at Ku-band.

Lowest Infrastructure CostSurfBeam is built around third and fourth genera-tion hardware and software developed for the cable modem and Direct-to-Home (DTH) television mar-kets. The maturity of this system and the high degree of integration results in enhanced functionality and reduced capital and operational costs in the gateway. At the gateway, a single 19-inch rack provides all the functionality you’ll need. Equivalent DVB-RCS equipment would require ten to 14 racks of hard-ware.

Lowest Terminal CostAdding unique firmware and a satellite Intermediate Frequency interface to the latest in Data-Over-Cable Service Interface Specification (DOCSIS) and DTH chipsets gives you the SurfBeam subscriber termi-nal. The high degree of integration and high volume production of the chipsets greatly reduces the costs of the satellite modem.

Excellent Customer ExperienceLow capital and operating costs are meaningless without a satisfactory user experience. DOCSIS-based services have proven their acceptance with over 30 million subscribers. And SurfBeam requires no software installation and custom configuration on the customer computer.

Lowest Operational CostsFor large scale network deployments with a single terminal per customer, the operational costs can become a significant component of the total cost of service. SurfBeam can be deployed with mature OSS and BSS systems offering automated service man-agement, provisioning, network management and diagnostics, Customer Service Representative sup-port, billing, etc.

ViaSat’s broadband Internet-over-satellite system is unlike any VSAT system, so it gives you all new advantages over the competition. For reaching home and small office customers with cost effective band-width ANYWHERE, SurfBeam is the next genera-tion system for you.

You Can be Confident With ViaSat As Your PartnerViaSat has been an innovator and leading supplier of state-of-the-art satellite terminals and networks since its inception in 1986. We can bring together the right products, technologies and system engineering exper-tise to help make your broadband Internet service a commercial success. For its record of performance the company has been listed by Forbes magazine among the “200 Best Small Companies in America.” ViaSat employs over 1000 people including eight regional offices worldwide.

Whether providing worldwide, secure mobile satel-lite networks for U.S. and NATO forces; developing advanced, broadband SATCOM ground systems; or developing and supporting Ka-band gateways; ViaSat

has become the supplier of choice for complex satellite systems. Why? ViaSat brings an unmatched combina-tion of technical and business innovation, award win-ning schedule/quality performance and a commitment to the overall success of these ventures. ViaSat has ongoing executive and working level relationships with all major satellite operators for North America includ-ing Loral Skynet, Panamsat, Intelsat, SES Americom and Telesat. ViaSat is also very strong in Europe. With our partner Eutelsat, we are committed to bring broad-band services to Europe on the very powerful Eutelsat family of satellites.

www.viasat.com

Atlanta 4356 Communications Drive, Norcross, GA 30093, USA, Tel: +1.678.924.2400, Fax: +1.678.924.2480 Beijing Lucky Tower, Block B, Suite 1110-1112, No. 3 Dong San Huan Bei Lu, Beijing 100027, China, Tel: +86.10.6461.5761, Fax: +86.10.6461.5754 New Delhi 601, Paharpur Business Centre, Nehru Place Greens, New Delhi 110 019, India, Tel: +91.11.620.7618 or 620.7624, Fax: +91.11.647.4718 or 647.4725 Rome Piazza del Popolo 18, 00187 Rome, Italy, Tel: +39-0636712432, Fax: +39-0636712400San Diego 6155 El Camino Real, Carlsbad, CA 92009, USA, Tel: +1.760.476.2200, Fax: +1.760.929.3941 Sydney Unit 4/22 Narabang Way, Belrose, NSW 2086, Australia, Tel: +61.2.9986.3888, Fax: +61.2.9986.3899 Washington 20511 Seneca Meadows Parkway, Suite 200, Germantown, MD 20876, USA, Tel: +1.240.686.4400, Fax: +1.240.686.4800

Designs, specifications, and availability of products and services presented in this announcement are subject to change without notice. The ViaSat logo is a trademark of ViaSat, Inc.. DOCSIS is a registered trade-mark of Cable Television Laboratories Inc.. All other trademarks mentioned are the sole property of their respective companies. © Copyright 2005 ViaSat, Inc. All rights reserved. Printed in the USA.

S U R F B E A M®

BROADBAND SATELLITE ACCESS NETWORK

SurfBeam is a new standards based, satellite system that enables you to offer broadband Internet access to your current markets, and reach new customers be-yond. It starts with the proven economics of cable mo-dem systems and adds the wide, immediate coverage of satellite. Along with your existing customer base, distribution channels and support capabilities you’ll have a platform for rapid penetration into the broad-band access market. You can pick and choose the best customers, without the cost or delays in building ter-restrial connections to reach them.

This product is a totally new kind of satellite-based system for broadband networking, not like modified VSAT systems that have failed to prove themselves among consumers. This new technology can drop monthly service cost1 down to $39 on broad beam satellites and below $20 on spot beam satellites, while providing an excellent user experience that scales to millions of subscribers.

SurfBeam Applications

Internet access

Voice-over-IP

MPEG video over IP

High bandwidth FTP

IP Multicast

1 Service cost includes terminal lease, bandwidth, gateway and NOC operation, and customer support.

S U R F B E A M®

BROADBAND SATELLITE ACCESS NETWORK

NOT A VSAT, BUT A TRULY NEW WAY TO NETWORK BY SATELLITE THAT REACHES SUBSCRIBERS ANYWHERE — AT THE RIGHT PRICE.

DOCSIS™ 1.1 Standard Based

Subscriber terminals based on high volume cable modem chipset standard

Mature infrastructure products available

Low-cost SMTS with satellite physical layer

Off-the-shelf BSS and OSS equipment

SMTS-1200

SiTO GATEWAY RFSWITCH/ROUTER

TCP/HTTP ACCELERATION (PEP)NETWORK APPLIANCES

SATELLITE MODEM CONFIGURATION SERVER

DHCP & DNS SERVERS WEB BASED DIAGNOSTICS &TROUBLESHOOTING SERVER

SNMP MANAGER

TO INTERNET

VPN

TO SATELLITE HUB

ACCESS ROUTER

NETWORK OPERATIONS CENTER(BUISINESS SUPPORT, OPERATIONS SUPPORT AND

NETWORK MANAGEMENT SYSTEMS)

DEVICE PROVISIONING SYSTEM

ROUTING/SWITCHING

ELEMENT MANAGEMENT SYSTEM

Subscriber TerminalComponents include an Outdoor Unit (ODU) similar to a DTH satellite television dish, but with transmit capabilities, and an Indoor Unit (IDU) comparable in size and function to a desktop ADSL or cable modem. The ODU includes a compact satellite reflector and feed, transmit and receive electronics, and an associ-ated mounting kit to affix the unit to the customer’s home.

The IDU is just 23 by 23 by 3.8 cm (9 by 9 by 1.5 inches) with a sleek design to fit with other modern personal computing and telecommunications equip-ment, and interfaces to the customer’s computer or home network via a standard Ethernet connection. The IDU may be oriented on the customer’s desktop either horizontally or vertically to preserve desk space. Two cables connect the indoor and outdoor units.

SYSTEM DESCRIPTION

Low cost broadband satellite modem

Always on high-speed connections

Dynamic multi-rate forward link provides highavailability without throughput loss

Rate adaptable MF-TDMA return link

Built-in data security

Sophisticated QoS

10/100 Mbps Ethernet

Remote management and control

No PC software required

Standard Ku-band and Ka-band ODUs available

SMTS-1200

SiTO GATEWAY RFSWITCH/ROUTER

TCP/HTTP ACCELERATION (PEP)NETWORK APPLIANCES

SATELLITE MODEM CONFIGURATION SERVER

DHCP & DNS SERVERS WEB BASED DIAGNOSTICS &TROUBLESHOOTING SERVER

SNMP MANAGER

TO INTERNET

VPN

TO SATELLITE HUB

ACCESS ROUTER

NETWORK OPERATIONS CENTER(BUISINESS SUPPORT, OPERATIONS SUPPORT AND

NETWORK MANAGEMENT SYSTEMS)

DEVICE PROVISIONING SYSTEM

ROUTING/SWITCHING

ELEMENT MANAGEMENT SYSTEM

Satellite HubThe SurfBeam hub consists of five components, con-nected by its own LAN infrastructure:

SMTS-1200 based on a state-of-the-art Cable Mo-dem Termination System (CMTS). This carrier-class edge device manages and controls traffic between satellite network subscribers and the satellite gate-way and can route more than 42 million packets per second while managing 16,000 simultaneous traffic flows per satellite interface.

Integrated Performance Enhancing Protocol (PEP) to provide high performance for TCP/IP over broadband, geosynchronous satellite channels. PEP client software is integrated in each subscriber terminal, so no additional software is required on the customer’s computer.

Device Provisioning System provides the provi-sioning and management of subscriber terminals with regards to addressing, device configuration, and security.

Element Management System leveraging the well defined Management Information Bases (MIBs) from DOCSIS™ 1.1. The NMS queries and configures devices, and keeps you informed on the status of the network.

Routing/Switching Infrastructure for access to both the backbone Internet and to the Network Operations Center

Gateway redundancy of all mission critical service elements is designed into the basic gateway architecture.