Safran DSI - HEIM GMDR Fast and Flexible System for Ground Station Applications
The highly flexible modular GMDR system is a versatile and future-proof solution for acquisition, recording, dissemination and replay of FTI data in ground station applications.
With its high integration, incomparable range of supported video interfaces and full compatibility with global leading MDR products, the GMDR integrates seamlessly into customers‘ existing test range topologies.
With its intelligent data reduction through segmentation, pre-selection and filtering as well as the capability to freely disseminate subsets of data among several network destinations, GMDR efficiently reduces the operator‘s workload when analyzing test results.
For standard PCM/Ch7-Telemetry applications, two simplified, cost-efficient variants with integrated PCM/Ch7-Telemetry signal boards and one Data Express technology (DE50)- compatible storage media slot are available.
GMDR Features
Highly Flexible Modular Design |
GMDR2/6: 1U Form Factor, 2/6 module slots GMDR12: 2U Form Factor, 12 module slots |
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Dual-Drive Varients |
Flexible Usage of High-End MDR or Highly Cost-Effective Storage Media |
All-Rounder |
Providing Record and Replay capabilities |
Incomparable Range of Supported Video Interfaces |
DVI, SDI, PAL, NTSC, RTP |
Real-Time Data Access |
Live Monitoring of Recording |
Most Advanced IRIG 109-17 Chapter 7 Telemetry Ground Station |
More Product Information

The CORTEX Best Source Selector (BSS) is the ultimate choice for real-time telemetry source selection. It’s the go-to tool for pinpointing the best Telemetry source among multiple antennas tracking the same airframe across various channels.
The Best Source Selector streamlines the selection process by automatically choosing the top Telemetry stream, even from up to 16 sources or more, using a combination of signal quality metrics and other criteria. With its extensive capabilities in aligning paths and compensating for delays, the CORTEX Best Source Selector ensures optimal source selection, no matter where the antennas are located or what kind of range infrastructure you’re working with.

The B.SAFE is a crash-survivable flight data recording for board defense aviation aircraft and helicopters.
B.SAFE is designed to capture audio, video, and data on a Crash Survivable Memory stored in a rugged and highly compact chassis. You can easily replay the recorded data in a standard PC/Windows® environment using post-mission analysis software.

COMTRACK stands as the preferred choice for over 100 trusted telemetry tracking operators.
Its track record spans various applications, from military aircraft and helicopters to commercial aircraft and even launch vehicles. COMTRACK steps in where larger, space-consuming parabolic systems may not be the best fit.
With its compact, rugged design, this embedded phased array auto-tracking antenna excels at providing reliable telemetry reception across L, S, or C-bands, covering the entire sky up to 93 miles away. Its intelligent integration combines high-elevation reception with long-range capabilities, all within a protective radome.
Additionally, it enables dual-band installations to support systems operating in both current and future frequency ranges. When it comes to trust, simplicity, and performance, COMTRACK takes the lead.

The CORTEX RSR-RF (-40 or -200) stands as a digital recorder that plays a vital role in capturing and reproducing the RF analog signal received by the antenna before any processing occurs.
It’s an essential component in a Telemetry Station, ensuring the utmost availability of crucial data, particularly in cases where on-board recording is not feasible.
Data collected in-flight offers extensive post-processing flexibility. You can fine-tune various settings in the receiver, the bit synchronizer, and the decommutator to maximize the extraction of data, a feat achievable only with RF recording. Furthermore, it serves as an invaluable tool for test range qualification ahead of test flights.

IRIS optical ground stations are built to cater to a wide range of applications (LEO/GEO/Probes), including Earth observation, high throughput bi-directional telecommunications, feeder link, or deep space missions. The IRIS systems leverage the Cortex Lasercom, a globally recognized optical modem that supports various standards such as SDA, CCSDS, and HPE.

WeTrack® stands as a one-of-a-kind service developed, possessed, and operated by Safran Defense & Space, Inc. (formerly Safran Data Systems, Inc.). Leverage its autonomous network of radio frequency (RF) sensors to attain precise orbital positions with high data update rates, enhancing your decision-making capabilities across all orbit scenarios, thanks to our global coverage. With automated sensors for detection and tracking, stay well-informed 24 hour, every day of the year.
Our patented technology, designed for passive satellite emissions reception, provides comprehensive coverage of all orbits, boasting multiple networks deployed in the United States, Europe, and Asia. WeTrack® grants real-time access to information through a secure web portal.

The RTR-X4 is one of the most advanced digital telemetry receivers on the market with its well-recognized RF performance and signal processing capability.
The 4U chassis-based RTR-X4 can support up to four channels providing flexibility and capability as well as a rich set of features for different frequency bands, modulations, decoders and output formats.
Not only does the CORTEX RTR provide an extensive set of features for different frequency bands, modulations, decoders and output formats, but the user can easily upgrade the equipment in the field to access additional and new features. The RTR-X4 is an excellent fit for flight test ranges, offering full flexibility and easy access to settings through its user-friendly GUI on the embedded 8.4-inch screen.

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Pulse tube cryocooler for cryogen free 4K temperatures
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Two stage ADR provides solid state cooling down to 30mK
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Sample stage mounting at both 1K and 50mK
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Multiple stage feedthroughs for thermally intercepting the signals
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Two large electrical bread boards for more configurable space
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Rapid cool options for faster cooldowns

Configuring, managing, and integrating the system are crucial steps for ensuring the success of flight testing and achieving precise telemetry. eZ Software is your go-to solution.
- eZ SetUp software allows to configure from a single acquisition unit to a complete acquisition system within a network architecture.
- eZ Operation software is an advanced tool for centralized supervision and control of complex test systems from an onboard operator station.
- eZ Processing / Advantys software offers advanced functions for data display and processing.

Safran DSI
Safran Defense & Space, Inc. (Safran DSI) is a leading provider of cutting-edge solutions designed to address the evolving challenges of national defense and advanced space missions. Headquartered in Arlington, Virginia, Safran DSI operates through specialized business units in Optronics, Space Solutions, Testing & Telemetry, Geospatial Artificial Intelligence (AI), and Assured Positioning, Navigation, and Timing (PNT). Safran DSI leverages its parent company's innovative technologies and global resources to deliver unparalleled solutions across air, land, sea, and space domains.
Testing & Telemetry BU provides complete end-to-end solutions from instrumentation, mission systems, on board recording and transmitting to base station for monitoring and controlling data. Our complete solutions are platform agnostic and are adaptable to the customer mission needs. Our instrumentation and telemetry turnkey solutions for mobile and stationary systems. This includes, but not limited to, data acquisition units (DAUs), on board recording, ground receiving, recording, and processing applications for fixed and rotary wing, manned and unmanned systems, eVTOL aircraft, as well as missile systems and space rockets/launchers. We offer comprehensive data management solutions for operational aircraft allowing for ISR, Search & Rescue, mission data loading & data transfer and pilot training & debriefing.
Contact Details
Safran Defense & Space, Inc.
3005 Business Park Drive, Norcross, GA 30071, USA
Phone: 770-753-4017
Test & Measurement
