iDirect Government introduces 450 Rackmount software-defined modem for multi-orbit military SATCOM operations
HERNDON, Va. - iDirect Government in Herndon, Va., has introduced the 450 Rackmount software-defined modem, a compact satellite communications terminal designed to support military and government connectivity across multiple orbits, waveforms, and mission environments.
The 450RM operates across iDirect Government’s Evolution Defense network as well as Viasat GX, SES Flex, and DVB-S2X waveforms, and supports compatibility with the military-standard 188/165B Enhanced Bandwidth Efficient Modem. The system is designed for use across geostationary, highly elliptical, medium Earth orbit, and low Earth orbit satellite constellations.
The company said the modem is intended to provide resilient and secure communications for operations across deployed environments, airborne platforms, and fixed installations, supporting voice, video, and data traffic in both contested and non-contested settings.
The 450RM is a half-rack unit designed for space-constrained installations, allowing two units to be mounted side by side within a standard rack footprint to reduce physical space requirements while maintaining redundancy and deployment flexibility.
The system is based on iDirect Government’s 4 Series software-defined modem architecture, which integrates the company’s Communication Signal Interference Removal technology and a cryptographic subsystem aligned with Federal Information Processing Standards 140-3 Level 3 requirements for encryption security.
According to the company, the architecture is designed to support transmission security (TRANSEC)- compliant network operations and provide resilience in environments where communications interference or jamming may occur. The modem is intended to support secure communications for government users operating across distributed and mobile mission sets.
The 450RM is designed to operate within multi-orbit satellite communications architectures, supporting interoperability across commercial and government satellite networks. The system’s software-defined architecture is designed to enable operators to adapt waveform and network configurations to mission requirements and available satellite resources.
iDirect Government said the system is intended for use in tactical edge environments, including command and control, intelligence, surveillance and reconnaissance, maritime communications, airborne communications, and ground-based operations.
The company said the system integrates its interference mitigation technology and encryption architecture to support secure communications in environments where spectrum congestion or contested communications conditions may be present.
The modem also supports integration with the Open Antenna Modem Interface Protocol, enabling interoperability with compatible antenna systems and broader satellite communications architectures.
The company said the 450RM is intended to provide a compact, scalable terminal option for government users requiring multi-orbit satellite communications capability in a single hardware footprint, with support for both legacy and next-generation SATCOM networks.