L3Harris Technologies and Comtech Telecommunications have introduced an embeddable multi-orbit satellite communications (SATCOM) modem designed for military use.
The 5650C2/MP modem enables connectivity across medium Earth orbit, geostationary orbit, and highly elliptical orbit satellites through a single compact system, supporting resilient communications in contested environments.
Built on Comtech’s software-defined architecture, the modem supports multiple waveforms, including Direct Sequence Spread Spectrum, allowing secure, anti-jam transmission.
The system can also be reconfigured for mission-specific requirements.
The platform integrates with L3Harris’ tactical terminals, including Panther and Hawkeye man-portable systems, enabling rapid deployment with minimal additional hardware.
The modem is undergoing certification for the US Space Force’s Wideband Global SATCOM (WGS) constellation and is also being evaluated for integration with the European Satellite Company’s mPower constellation (mGS).
“This is a unique pairing of technologies that significantly enhances operator effectiveness and overall mission success,” said Chris Aebli, president of Mission Critical Communications at L3Harris.
“This collaboration was a significant undertaking and results in an embeddable modem that can operate between the mGS and WGS constellations, making it the only SATCOM solution of its kind in the marketplace.”
Daniel Gizinski, President of Satellite & Space Communications Segment at Comtech, added that the collaboration reflects growing demand for flexible and resilient communications in contested environments.
“This new modem demonstrates how industry partnership can accelerate innovation and give customers the flexibility and confidence they need to stay connected and mission ready,” he stated.









