An open-source 240-antenna array to bounce signals off the Moon (moonrf.com)

MoonRF is an open-source communications project building phased-array hardware for amateur use, including a 240-antenna (100 cm) array designed for Earth–Moon–Earth “moon-bounce” experiments. The site outlines upcoming kits—starting with the QuadRF 4-antenna SDR tile—and describes how larger arrays can be scaled for higher beam-forming gain and EIRP, alongside other terrestrial RF imaging and satellite-link use cases. Operation is tied to Amateur Radio Technician+ licensing and includes export-control limits for radar-related functionality.