Simpulse, a French specialist in high-performance radio links, has demonstrated high-definition video transmission over a distance of more than 200km.
This achievement was made possible by the SL300 radio link, which features anti-jamming technology and is based on the company’s proprietary Software Defined Radio (SDR).
To conduct this demonstration, Simpulse utilized the expertise and airborne resources of the Multimodal Airborne Engineering Platform (PIMA) at the Institute of Electronics and Digital Technologies (IETR) in Rennes, a public laboratory affiliated with the CNRS.
The test involved two ‘long-range’ versions of the SL300 modem: one was installed aboard an IETR aircraft carrying an HD video camera, and the other was integrated into Simpulse’s GRS-T300 ground station, positioned at the edge of the airfield runway. The aircraft flew up to 220km away from the airfield, reaching an altitude of 3,400m to stay above the horizon.
The plane turned around at 220km, and throughout the entire flight, the bi-directional radio link remained operational, allowing for the reception of HD video up to a range of 200km.
Emmanuel Hamman, President of Simpulse, said, “This success validates the robustness and exceptional performance of our anti-jamming SDR technology under real-world conditions. The long-range SL300 opens up new possibilities for critical applications that require reliable communications over very long distances.”
The long-range version of the SL300 modem is expected to be commercially available at the end of 2025, offering industrial clients and operators new solutions for robust connectivity in demanding environments.
