GNSS Recorders
High-fidelity GNSS recording and replay solutions for real-world testing.
Safran GNSS recorder and player solutions capture real-world GNSS and RF signals for precise playback, analysis, receiver development, validation, and repeatable laboratory testing.
What Is a GNSS Recorder & Who Is It For?
A GNSS recorder is a test device that captures live radio frequency signals received from GNSS satellites, preserving the real-world signal environment for later analysis or playback. Recorded scenarios can include actual satellite signals along with interference, atmospheric effects, multipath, and other RF conditions.
A GNSS player reproduces previously captured RF signals in a controlled laboratory environment. This allows engineers to expose receivers and navigation systems to the same real-world conditions repeatedly, helping make development, troubleshooting, validation, and production testing more consistent.
Safran GNSS recorder and player solutions are ideal for applications including:
Aerospace & Flight Testing
- Capture real-world GNSS and RF conditions during flight tests and replay identical scenarios in the laboratory for repeatable receiver development and validation.
Defense & Resilient PNT
- Record complex RF environments containing interference and other challenging signal conditions to evaluate GNSS receivers and resilient navigation technologies under repeatable scenarios.
Automotive & Transportation
- Capture GNSS conditions encountered by vehicles, trains, and autonomous platforms and reproduce those environments during controlled laboratory testing and system development.
Space & Satellite Systems
- Record and replay wideband RF signals for satellite navigation, space communications, receiver development, research, and validation of advanced space-based technologies.
Safran GNSS Recorder & Player Solutions
ECHO™ 4RP
Echo 4RP is an all-in-one high-fidelity GNSS recorder and player that captures real-world RF signals and replays them in controlled test environments.
With up to four synchronized RF channels configured as inputs or outputs, Echo 4RP supports L, S, and C bands for GNSS, space telecommunications, and advanced RF testing applications.
Echo 4RP can be used to record and replay RF signals in complex, 4-element CRPA environments.
ECHO™ R
Echo R is a dedicated GNSS recording solution designed to capture real-world satellite and RF signals for subsequent analysis and repeatable laboratory testing.
Recorded field scenarios can be preserved and used with a compatible replay system, allowing engineers to bring actual operating conditions back into the lab.
ECHO™ P
Echo P is a dedicated GNSS playback solution designed to reproduce previously recorded GNSS and RF signals within a controlled laboratory environment.
Engineers can replay the same recorded scenario repeatedly, enabling consistent receiver development, troubleshooting, validation, regression testing, and performance comparison.
GNSS Recording & Playback Feature Comparison
| Feature | Echo 4RP | Echo R | Echo P | Echo Mini |
|---|---|---|---|---|
| Primary Function | Record & Replay | Record | Replay | Record & Replay |
| Real-World Signal Capture | Yes | Yes | No | Yes |
| Recorded Signal Playback | Yes | No | Yes | Yes |
| Typical Environment | Field & Lab | Field | Lab | Field & Lab |
| Primary Application | Complete Record & Replay | Signal Capture | Repeatable Testing | Ad-Hoc Record & Replay |
Bring Real-World GNSS Conditions Into the Lab
GNSS performance can change dramatically between controlled laboratory conditions and the real world. Buildings, terrain, moving platforms, interference, multipath, atmospheric effects, and surrounding RF activity can all influence the signals reaching a receiver.
GNSS record-and-replay technology captures these real conditions in the field so engineers can reproduce them later, turning difficult-to-repeat events into consistent and controlled test scenarios.
Repeat GNSS Tests Under Identical Signal Conditions
Testing a receiver against the same RF scenario makes it easier to evaluate software updates, algorithm changes, hardware configurations, and overall system performance.
Instead of returning to the original test location, engineers can replay recorded scenarios as often as needed, helping accelerate development while improving consistency between successive tests.
Capture Once. Test Again and Again.
Developing reliable GNSS equipment requires more than ideal laboratory signals. Engineers need to understand how receivers and navigation systems behave when confronted with the complexity of actual operating environments.
Safran GNSS recorder and player solutions bridge field testing and laboratory validation by capturing real RF environments and making those scenarios available for repeatable testing throughout development.
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Contact us today to learn more about Safran GNSS Recorders.