In August 2019, GIRD successfully demonstrated a novel wideband, high-throughput HF waveform with automatic mode adaptation and link establishment for improved robustness to channel conditions and interference. The prototype software defined radio (SDR) demonstration took place between northern Kentucky and the Northeastern U.S., establishing links of over 650 nmi to an airborne platform. GIRD’s SDR not only exceeded the performance of existing military and commercial HF radios through the use of the novel HF waveform, but demonstrated backward compatibility to legacy HF radios.
Prior to this demonstration, in March 2019, GIRD demonstrated the HF radio platform at over 1300 nmi to the Southeastern U.S. Along with file and image transfers, streaming video was demonstrated.