SDR TT&C Modem for tomorrow’s satellite communication
Terma SPECTRA (Software-defined Platform for Enhanced Communication, Telemetry, and Ranging Application) is a software-defined TT&C modem engineered for reliability, security, and flexibility.
Whether you're operating a ground station or validating satellite hardware in a test environment, Terma SPECTRA delivers the performance, flexibility, and reliability you need – today and tomorrow.
CCSDS-compliant TM/TC processing
Multi-channel support for TX & RX
Software-configurable, modular and extendable
Move Faster, Test Smarter, Win Grounds – In Space
Terma SPECTRA equips your team to move faster, test smarter, and keep pace with change, whether you’re testing on the ground or operating in orbit. All in all, an SDR Modem designed to adapt to your mission’s needs.

Reduce mission risk before launch

Scale Ground Connectivity with Flexibility and Precision
Features of Terma SPECTRA
Take a look at the key features of SDR modem. Our team is working on upcoming features like CCSDS SLE, Channel Impairment Simulation, Adaptive coding & modulation, Full DiFi support, Web-based GUI with RESTful API.
Extensible Modular Software Design
Terma SPECTRA features a modular and extensible software architecture that enables rapid customization to support evolving mission requirements. Whether integrating new functionalities or adapting existing ones, the platform is designed for quick adaptation – across both operational and testing environments.
Standards-Based Compliance
The modem supports key industry standards such as CCSDS, enabling seamless integration with existing RF SCOE systems, EGSE setups, and satellite networks. For you, that means reduced integration effort in a standardized environment.
Flexible Architecture: 50% Space Savings
Deploy the modem as a compact all-in-one unit or distribute the RF front-end and baseband processing across your infrastructure. This modular setup supports centralized ground stations as well as remote or virtualized test environments. With support for containerized and virtualized deployments, the system fits seamlessly into on-premises, cloud, or hybrid architectures – enabling scalable, automated workflows with up to 50% space savings.
Redundancy and Mission Continuity
The built-in dual modem support gives you the needed redundancy. Paired with the support of parallelization this preserves mission continuity if one modem fails – a fail-safe design that is especially critical for high-reliability ground systems and satellite operations.
Scalable, Future-Proof Architecture
Terma SPECTRA is designed with growth in mind. The modem’s scalable architecture adapts to your mission’s evolving requirements and support for containerized and virtual deployments allows teams to scale resources on demand, automate system updates, and deploy flexibly across mission phases. All without increasing physical hardware footprint.
Native L- and S-Band Support
Operate natively in L- and S-band without the need for external converters or intermediate frequencies (IF). This simplifies RF chain design, reduces integration effort, and improves signal integrity by minimizing intermediate components.
Security by Design
Security is embedded from the ground up, with end-to-end encryption and secure authentication. This protects sensitive data against hacking, cyberattacks, and unauthorized access which is critical for defense, space, and regulated missions. Automated threat detection and response identifies potential security risks and automatically takes action to prevent disruptions. Terma SPECTRA meets the high-security demands of modern satellite operations.
Benefits of Terma SDR Modem
Built for long-term value and mission continuity. It’s not just an SDR satellite modem, it’s your tool for future missions.
Lower Lifetime Cost
Avoid frequent hardware refresh cycles with software updates that extend system life. Terma SPECTRA is compact and cost-effective, that helps reduce CAPEX and OPEX.
Faster Integration
Deploy easily into existing infrastructure without the need of major rework.
Stay Secure
Whether you're operating in defense, space, or critical infrastructure, your data stays secure, and your links stay resilient, even in contested environments.
Trusted Expertise
The SDR modem is built with deep domain expertise in satellite EGSE and RF-SCOE and developed in collaboration with ESA. For you, this means a modem that echoes years of hands-on experience, protocol mastery, and practical innovation in live, real-world space missions.
NEED MORE DETAILS?
Then download our solution materials
Contact us
If you have any questions about Terma SPECTRA, SDR TT&C modem, please send us a message.