April 27, 2011

Testing Verifies Interoperability of DVB-S2 & DVB-RCS Open Standards-Based Modems 

Carlsbad & Irvine, Calif., April 27, 2011 – ViaSat Inc. (Nasdaq:VSAT) and STM Group Inc. (STM) have successfully demonstrated waveform interoperability between the STM SatLink 2000 modem and the ViaSat DoD-standard Joint Internet Protocol Modem (JIPM). The testing is a major milestone in the JIPM program, which has a key underlying goal of providing more options and lower costs to DoD and NATO forces through interoperability between modems from different manufacturers.

The JIPM program, initiated by the Defense Information Systems Agency (DISA), establishes the JIPM as the government-standard IP network satellite modem for connecting U.S. forces. The JIPM standard is based on the adaptive and variable coding modulation techniques used in the global DVB-S2 and DVB-RCS standards. Through the success of this testing exercise, products that comply with this latest IP network modem standard are guaranteed basic waveform interoperability.

The JIPM modem combines the flexibility of the commercial standards with information assurance to deliver secure, high-speed IP communication to military and government agencies. Powered by an IP networking backbone across the service area, warfighters using JIPM-compatible satellite modems can efficiently share voice, video, and data communications over military and commercial satellites (including X- and Ka-band).

“Our testing shows that the STM modem meets the strict interpretation of the DVB-S2/RCS open standard and the flexible, high-performance network operation that warfighters need,” said Phil Chacon, business director of C4I Satcom at ViaSat. “The SatLink 2000 design makes it a good choice to join the JIPM ‘family of modems’ concept.”

“We believe that design excellence and strict compliance with the DVB-S2/RCS standard is fundamental to increasing use of our products,” said Umar Javed, executive vice president at STM. “Our successful interoperability testing with ViaSat will benefit U.S. government and NATO customers and increase the demand for standards-compliant modems.”

About ViaSat (

ViaSat produces innovative satellite and other digital communication products that enable fast, secure, and efficient communications to virtually any location. The company provides networking products and managed network services for enterprise IP applications; is a key supplier of network-centric military communications and encryption technologies and products to the U.S. and allied governments; is the primary technology partner for gateway and customer-premises equipment for consumer and mobile satellite broadband services; and owns WildBlue, the premier Ka-band satellite broadband service provider. ViaSat also offers design capabilities and a number of complementary products including monolithic microwave integrated circuits and modules, DVB-S2 satellite communication components, video data link systems, data acceleration and compression, and mobile satellite antenna systems. Based in Carlsbad, Calif., ViaSat has established a number of worldwide locations for customer service, network operations, and technology development.


About STM Group (

STM provides complete IP based satellite network systems, under the SatLink brand, that follow the DVB-RCS standard and operate in C-, Ku-, and Ka-bands. STM products are in use globally and serve customers in diverse industries for a variety of IP based applications. Based in Irvine, Calif., STM has offices in several worldwide locations for product development, network services, and technical support.


Brian Cunningham
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Testing Verifies Interoperability of DVB-S2 & DVB-RCS
Open Standards-Based Modems

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