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Viasat Plans To Demonstrate PTS-G Design By Middle of Next Year

Viasat Targets Mid-2026 Demo for PTS-G: Accelerating Secure Military Satcom Capabilities

Viasat Inc., a key defense contractor for advanced satellite communications, continues to expand its influence in the military satcom domain. Known for delivering secure, resilient connectivity solutions to the U.S. Department of Defense and allied forces, Viasat plays a strategic role in shaping the next generation of tactical communication infrastructure.

The development of the Protected Tactical Satcom-Ground (PTS-G) system marks a pivotal step in the evolution of tactical satellite communication. Engineered to support the U.S. Space Force’s Protected Tactical Enterprise Service (PTES), PTS-G will facilitate jam-resistant, low-probability-of-intercept communications between users and geostationary satellites—a fundamental capability in modern contested environments.

With the system progressing toward a planned demonstration by mid-2025, Viasat aims to validate its end-to-end architecture in real-world operational scenarios. This milestone will mark a critical checkpoint in transitioning PTS-G from development to field deployment, reinforcing communication superiority in multi-domain operations.

Viasat's Deep Roots in Defense and Secure Satellite Communications

Company Overview: Bridging Commercial Innovation with Defense Needs

Viasat operates at the intersection of advanced satellite communications and national defense. The company delivers high-capacity satellite broadband services, secure networking systems, and defense-grade communication solutions to both commercial and government customers. Headquartered in Carlsbad, California, Viasat maintains a global footprint with innovation centers across North America, Europe, and Australia. With decades of investment in satellite technology, the company develops and operates powerful communication infrastructure, including its own satellite constellations like ViaSat-2 and the developing ViaSat-3 global network.

Focused Solutions for Defense and Government Sectors

In the defense domain, Viasat provides mission-critical capabilities tailored for modern warfighting and government operations. These offerings include:

Decades of Partnership with the U.S. Department of Defense

Viasat's contributions to national defense span more than thirty years of collaboration with the U.S. Department of Defense (DoD). The company has been a long-standing provider of networking hardware, software, and secure SATCOM services supporting numerous military programs including Joint All-Domain Command and Control (JADC2), the Advanced Battle Management System (ABMS), and the Mobile User Objective System (MUOS).

Through continuous contract wins and innovations — such as its agile development methods for rapid prototyping — Viasat has demonstrated its ability to meet the evolving needs of the U.S. military. Its expertise in integrating commercial off-the-shelf (COTS) technology into military-grade solutions allows the DoD to accelerate timelines and leverage commercial advances without sacrificing security or performance.

Unpacking PTS-G: A Ground Terminal Designed for Secure Satcom Operations

Definition and Role in the Protected Tactical Satcom (PTS) Program

PTS-G stands for Protected Tactical Satcom–Ground, a next-generation secure ground system developed under the U.S. Space Force's Protected Tactical Satcom program. As the ground-based component of the PTS architecture, PTS-G is designed to interface seamlessly with newly developed protected waveforms and space segment payloads, such as the Protected Tactical Waveform (PTW) and hosted payloads aboard commercial or military satellites.

The Department of Defense initiated the PTS program to address persistent vulnerabilities in military communications exposed by growing global electronic warfare capabilities. PTS-G forms a foundational element in this push, designed to support resilient, anti-jam, and low-probability-of-intercept tactical communications for deployed forces.

Relationship with Overall Military Communication Systems

Rather than functioning in isolation, PTS-G integrates into the broader Military Satellite Communications (MILSATCOM) ecosystem, which includes systems like the Advanced Extremely High Frequency (AEHF) satellites and Mobile User Objective System (MUOS). By enabling tactical users to operate over both military and commercial satellites while maintaining secure channels, PTS-G enhances agility and redundancy in the communications infrastructure.

This modular and interoperable design allows services to deploy PTS-G alongside existing terminal architectures, minimizing logistics burdens and accelerating field operations across land, air, and sea domains.

Importance of PTS-G in Enhancing Secure Ground-Based SATCOM Terminals

At its core, PTS-G delivers key enhancements over legacy ground terminals in three tactical dimensions:

In battlefield scenarios where adversaries employ sophisticated jamming or signal tracking, PTS-G ensures that tactical units retain uninterrupted access to command-and-control communications. This isn't just an enhancement—it's a ground system rewriting expectations for resilience and performance in contested environments.

Mid-Year Milestone: Viasat Set to Demonstrate PTS-G Design

Demonstration Timeline and Objectives

By mid-2025, Viasat will initiate a critical demonstration of its Protected Tactical Satcom – Global (PTS-G) design. This event marks a major checkpoint in the development cycle, offering a clear look at how the system performs under test conditions and confirming whether key performance metrics align with contractual benchmarks.

The demonstration will encompass three core areas: functionality, system readiness, and integration. Engineers will validate waveform efficiency, assess cybersecurity parameters, and verify end-to-end interoperability with ground and space assets. Each segment of the test builds confidence in the system's capacity to operate effectively across multiple tactical environments.

Demonstration Scope

Alignment with U.S. Department of Defense Priorities

This mid-year demonstration does more than prove technical viability. It directly supports the U.S. Department of Defense’s Protected Tactical Enterprise Service (PTES) program milestones. Timely execution ensures Viasat’s offerings remain aligned with the DoD’s operational deployment schedule and battlefield communication needs.

By demonstrating compliance with the Modular Open Systems Approach (MOSA) and Joint All-Domain Command and Control (JADC2) frameworks, the PTS-G system strengthens its role in next-generation secure satellite communications architecture.

Strategic Significance of PTS-G Design in Modern Military Communications

Enhancing Communication Resilience in Contested Environments

Military operations increasingly rely on uninterrupted, high-integrity data exchange, especially in regions where electronic warfare and cyber threats dominate. The PTS-G design directly addresses this challenge. By enabling Protected Tactical Waveform (PTW) capabilities on geostationary satellites, it sustains mission-critical communications even when adversaries attempt to disrupt or deny signals.

In simulated and real-world scenarios, U.S. forces operate in environments saturated with electromagnetic attacks. With PTS-G architecture, Viasat incorporates waveform agility and mission planning tools that dynamically adapt to interference. These features allow seamless communications continuity in both urban theaters and remote engagement zones. Without this layer of signal protection, command and control cohesion breaks down rapidly under duress.

Integration of Anti-Jamming Technologies and Tactical Data Link Support

The PTS-G node integrates Layer 2 and Layer 3 anti-jam enhancements, including time-frequency hopping, waveform randomization, and directional beamforming. These features shield transmitted signals from deliberate jamming and unintentional interference. Additionally, the design supports interoperability with Link-16 and other tactical data link systems, allowing warfighters to bridge satellite and line-of-sight communications channels during joint missions.

Unlike conventional military SATCOM systems, which often suffer from latency and vulnerability in degraded-spectrum operations, PTS-G harnesses AI-driven threat detection and physical-layer countermeasures. The result: continuous situational awareness and connectivity across joint and coalition force elements. Where standard systems would buckle under electronic intrusion, PTS-G enables commanders to maintain control loops and ensure task execution in real time.

Supporting U.S. National Security Operations with Next-Gen SATCOM

Strategically, the development aligns with U.S. DoD's Joint All-Domain Command and Control (JADC2) framework, which emphasizes resilient, low-latency communications spanning land, sea, air, space, and cyber domains. As PTS-G becomes operational, it will connect platforms like drones, ships, and manned aircraft into a unified command structure.

The DoD’s long-term SATCOM strategy prioritizes open system architectures and modular payloads capable of rapid upgrades. PTS-G meets those criteria. Its inclusion in the Protected Tactical Enterprise Service (PTES) architecture extends U.S. tactical influence beyond terrestrial limitations. Whether securing space-based ISR data flows or supporting precision strike packages, the satellite’s advancements increase national leverage in globally dispersed conflicts.

When deployed, PTS-G will form a critical node in the layered security structure of U.S. military satellite communications. Designed to endure cyber and physical threats, it reinforces operational reach, decision superiority, and battle management capability in the information-dominant warfare landscape.

Integrating PTS-G Into the Next-Gen Secure SATCOM Framework

The Department of Defense's Protected Tactical Satcom Vision

The Department of Defense (DoD) laid the foundation for Protected Tactical Satcom (PTS) as a key element within its strategy to modernize military communications infrastructure. The aim: assure warfighters uninterrupted access to anti-jam, secure satellite channels, even in the face of contested or congested environments. PTS isn't simply a set of technologies—it’s a comprehensive architecture that spans terminals, ground systems, waveform standards, and space-based transmission capabilities.

At the core of the PTS vision is the use of the Protected Tactical Waveform (PTW), which delivers low probability of intercept and detection (LPI/LPD) as well as anti-jam characteristics. The DoD's roadmap calls for both evolutionary and revolutionary improvements to legacy Wideband Global SATCOM (WGS) systems through PTS implementation. This involves introducing upgrades at multiple network layers, from earth terminals to satellites.

PTS-G Operates on the Ground, Aligned with a Space-Based Network

Viasat’s Protected Tactical Satcom-Ground (PTS-G) functions not in isolation but as the terrestrial enabler for secure satellite-based communications. It serves as the tactical terminal interface for PTW-enabled architectures, bridging ground forces with protected links to satellite constellations. By directly supporting waveform management, dynamic resource allocation, and net-centric workflows, PTS-G turns complex satellite connectivity into real-time operational capability.

What makes PTS-G strategic is its interface with both current geosynchronous systems and future satellite platforms. The demonstration slated for mid-2025 will validate how PTS-G supports key PTW features like secure mesh networking, frequency agility, and dynamic beamforming. It will also show that terrestrial nodes can function cohesively within the DoD’s larger Protected Tactical Enterprise Service (PTES) framework.

Leveraging GEO Satellites for Protected Tactical Communications

Geostationary Earth Orbit (GEO) satellites remain fundamental to the PTES approach. Orbiting at approximately 35,786 kilometers above Earth, these satellites offer persistent coverage and low terminal pointing requirements—advantages critical for forces operating in fixed or semi-mobile roles. PTS-G supports this orbital architecture by establishing secure uplink and downlink pathways to GEO-based payload solutions, including hosted PTW solutions on allied platforms.

By embedding itself into this satellite-ground architecture, Viasat’s PTS-G system strengthens the backbone of tactical communications that the DoD plans to rely on well into the 2030s. It’s not just a terminal—it’s a node in a globally distributed, hard-to-disrupt military network.

Breaking Ground in Secure Communications Technology

Secure Communications Technology Developed by Viasat

Viasat’s recent innovations in secure communications are centered around delivering assured connectivity in highly contested environments. The company has integrated advanced waveform technologies and multi-network routing protocols directly into the Protected Tactical SATCOM – Global (PTS-G) architecture. These enhancements allow the system to maintain connectivity even when operating in congested or denied environments. Using adaptive signal modulation techniques, the PTS-G system can dynamically respond to variable signal conditions, optimizing throughput and maintaining link integrity under duress.

Built-in Resilience: Anti-Jam Capabilities and Network Agility

At the core of the PTS-G design is an adaptive anti-jam framework that incorporates both frequency-hopping spread spectrum (FHSS) and beamforming technologies. The terminal intelligently scans for interference and autonomously transitions to alternate frequencies or beam paths, reducing latency associated with manual reconfiguration. Viasat’s implementation of directional nulling techniques further strengthens signal integrity by isolating and mitigating interference sources. Combined with software-defined networking (SDN) protocols, the terminal’s agility extends beyond physical-layer protection—it re-routes data using the most secure and efficient network paths available across SATCOM, terrestrial, and aerial nodes.

Encryption, Authentication, and Protected Transmission Layers

All data streams processed through the PTS-G terminal undergo end-to-end encryption using Type 1 certified cryptographic modules, in compliance with National Security Agency (NSA) requirements for top-secret communication. These modules support dynamic key exchanges through over-the-air rekeying (OTAR), which reduces operational overhead and minimizes security risks associated with manual key management. Integrated hardware-based authentication checks also prevent spoofing and unauthorized access. To secure the transmission layer, Viasat incorporates multi-layered encapsulation protocols, including IPsec and Multi-Protocol Label Switching (MPLS), ensuring confidentiality, integrity, and availability of mission-critical data across all transport environments.

Rather than relying on legacy deterministic communication models, PTS-G treats the operating environment as fluid. This architectural shift allows commanders and operators to focus on mission objectives without sacrificing link security or performance. With Viasat's technical advancements in place, the upcoming PTS-G demonstration next year will not only validate system functionality—it will showcase a leap forward in secure communications strategy.

Government Contracts Propel PTS-G Advancements

Major Funding Secured for PTS-G Development

Viasat continues to build momentum for its resilient communications architecture through key government contract awards. The U.S. Space Force’s Space Systems Command (SSC) selected Viasat as one of the contractors for the implementation of the Protected Tactical SATCOM – Global (PTS-G) program. This multiyear effort is designed to accelerate protected satellite communications that can resist electronic warfare and operate in contested environments.

In October 2022, Viasat secured a $50 million contract from the SSC under the Space Enterprise Consortium Other Transaction Authority (SpEC OTA) initiative. The primary objective: to develop and demonstrate the PTS-G prototype terminal by mid-2025. The performance period includes delivery and testing of key technology demonstrators that will validate compliance with Protected Tactical Waveform (PTW) standards.

Leveraging Government Funding for Technical Innovation

Government contracting plays a catalytic role in Viasat’s ability to advance SATCOM innovation at scale. Through the PTS-G program, funding not only covers research and development but also pushes forward the integration of advanced encryption, anti-jam capabilities, and adaptive mesh networking into next-generation terminals. Access to these funding streams mitigates early-stage risk, ensures technical requirements are aligned with Department of Defense (DoD) priorities, and allows for iterative prototyping in partnership with government stakeholders.

This collaborative model opens a pathway for scalable deployment across multiple mission sets. It also provides a unified architecture that synchronizes with the broader Protected Tactical SATCOM family, which includes efforts led by Boeing, Northrop Grumman, and Lockheed Martin.

Deliverables and Future Contract Potential

With these contracts in motion, Viasat’s advancements in protected communications transitions from the bench lab to operational platforms, paving the way for deployment-ready capabilities that align with the DoD's digital modernization roadmap.

Solidifying Viasat’s Role in Aerospace and Defense Communications

Strategic Alignment with Defense Priorities

Viasat's ongoing commitment to developing the Protected Tactical SATCOM – Global (PTS-G) system reflects a deliberate business strategy tightly aligned with U.S. defense priorities. By designing solutions that conform to the U.S. Space Force's plans for resilient, jam-resistant communications infrastructure, Viasat positions itself as a primary stakeholder in the modernization of military satellite communications (MILSATCOM).

Specifically, the PTS-G initiative connects directly to the U.S. Department of Defense’s broader Joint All-Domain Command and Control (JADC2) objectives, emphasizing rapid response, interoperability, and secure data exchange across platforms. This strategic fit enhances Viasat’s role in delivering next-generation communications capabilities required for global military operations.

Competitive Edge in a Rapidly Evolving Market

Unlike legacy satellite system providers, Viasat leverages both proprietary technologies and agile design frameworks to accelerate secure communications development. The company maintains a competitive position by integrating modern waveform capabilities, dynamic beam shaping, and advanced cybersecurity protocols into its SATCOM platforms.

Where competitors like SES Government Solutions, Hughes Network Systems, and Lockheed Martin each offer components within the secure satellite space, Viasat brings together mission flexibility, global coverage, and software-defined networking. This vertical integration approach enables faster deployment cycles and customization for specific theater requirements, which defense agencies increasingly prefer.

Deep Integration with Military and Space Agencies

Collaboration defines Viasat’s operating model. The company works closely with the U.S. Air Force, the U.S. Space Force, and Space Systems Command, participating in joint testing environments and developmental exercises that shape national SATCOM doctrines. Through the PTS-G program partnerships, it contributes to secure low-probability-of-intercept, low-probability-of-detection (LPI/LPD) operations demanded by next-gen joint forces.

In parallel, Viasat maintains integration nodes and support structures embedded within U.S. combatant commands and NATO-aligned operations. These mission-focused installations ensure real-time feedback directly informs system design, interface protocols, and service-level performance metrics expected in battlefield contexts.

The PTS-G design demonstration promises to extend this positioning further by showcasing real-world performance metrics in contested environments. That performance, combined with programmatic discipline and cross-agency collaboration, enhances Viasat’s stature within the aerospace and defense sector—not merely as a technology provider, but as a strategic enabler of mission assurance through secure and robust communications.

Driving Capability Forward: Terminal Development and Readiness for PTS-G

Next-Generation Terminals Engineered for Mission Success

Viasat’s development of terminals purpose-built for the Protected Tactical SATCOM - Global (PTS-G) initiative targets significant leaps in resilience, agility, and integration. The company is aligning its engineering roadmap to support low Size, Weight, and Power (SWaP) requirements while embedding advanced anti-jam features and cryptographic enhancements necessary for the contested-domain operations that define future joint force communications.

The focus lies on software-defined, multi-orbit terminals that adapt on demand. These systems will support Protected Tactical Waveform (PTW) operations with capabilities for auto-beam switching, cognitive network adaptation, and real-time spectrum sensing. Development includes integration of phased array antennas and modular architecture to facilitate depot-level upgrades without complete system overhauls.

Interoperability at the Operational Edge

Viasat’s design strategy emphasizes seamless compatibility with a spectrum of Department of Defense (DoD) platforms—from man-portable kits to mounted tactical vehicle terminals and airborne ISR assets. The goal is to enable direct interoperability between dismounted warfighters, distributed control nodes, and strategic command elements across joint and coalition operations.

Current prototypes interface with Link-16, Integrated Waveform (IW), and legacy UHF/EHF systems for backward compatibility. Efforts are underway to incorporate MIL-STD-188-165B compliance and integrate future STT (Secure Tactical Terminal) configurations, aligning with USSF and Army SATCOM modernization architectures.

Stress-Testing in Representative Combat Environments

Systems won’t just be validated in lab conditions—they're headed into stress-testing across multi-domain operational testbeds. Planned evaluations involve both Hardware-in-the-Loop (HWIL) and Software-in-the-Loop (SWIL) labs, conducting simulations against synthetic electronic interference and GPS-denied conditions to replicate near-peer conflict scenarios.

By the time the mid-year demonstration window arrives, these field trials will have validated terminal resilience against dynamic link scenarios, electromagnetic threat environments, and real-time mission re-tasking requirements.

Key Milestone Marks a Turning Point in Protected Tactical SATCOM

Viasat has maintained momentum in delivering its Protected Tactical SATCOM – Global (PTS-G) solution, pushing toward a mid-2025 demonstration that will showcase both design maturity and operational viability. This planned demonstration serves not as a formality, but as a performance checkpoint in the Department of Defense’s roadmap for global, resilient SATCOM infrastructure.

With the PTS-G system positioned to provide global anti-jam and secure connectivity, the mid-year demo directly supports the U.S. Space Force’s vision of layered, distributed space capabilities. The integration of open system architecture, interoperability with existing platforms, and the ability to function in contested environments gives this program more than just technical credibility—it adds direct strategic value to mission assurance and command dominance.

Demonstrating the PTS-G design will not simply validate performance metrics. It will confirm Viasat’s capacity to deliver a shift in how tactical communications are protected, managed, and scaled. As space-based threats evolve, this program represents not a minor upgrade, but a decisive shift in technology leadership in the secure SATCOM domain.