T400XR TT&C Modem

Customizable software-defined TT&C Modem

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T400XR TT&C Modem

The Kratos T400XR is a satellite telemetry, tracking, and command modem for satellite ground stations. The system’s flexible and modular architecture allows it to support multiple mission configurations and be used as a replacement for legacy receiver models or for new applications.


The power of configuration diversity allows applications to be readily available during the full lifetime of the satellite from assembly and test, through launch and in-orbit test phases, to full operation.

Based on the latest FPGA technology, the T400XR combines the custom and multi-mission processing capabilities of software-based systems with the speed, low latency, and low latency variability of an analog system. It supports a wide range of modulation and demodulation signal processing modes, including SGLS and USB (tone) ranging, PSK, PM, FM, and spread spectrum. Custom waveforms are supported, as well as multi-channel systems that support diversity combining or multiple simultaneous downlinks and uplinks.


  • Customizable software-defined waveform processing
  • Ranging, SGLS/USB, and TDRS spread spectrum
  • 70MHz IF and fully integrated S/L-Band interfaces
  • Linux OS with IA Hardening Options
Satellite TT&C Ranging Modem


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5971 Kingstowne Village Pkwy, Suite 200
Alexandria, VA 22315
Phone: (703) 254-2000
Fax: (703) 254-2010
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