Note that this is just an academic paper to propose such a transmission. Arecibo is currently out of commission and FAST is presumed to not yet have a transmitt

Note that this is just an academic paper to propose such a transmission. Arecibo is currently out of commission and FAST is presumed to not yet have a transmitter. https://arxiv.org/ftp/arxiv/papers/2203/2203.04288.pdf https://arxiv.org/ftp/arxiv/papers/2203/2203.04288.pdf