Voyager 1 has a large 12-foot diameter directional radio antenna that it keeps pointed at Earth. If you look at photos of Voyager, the antenna (the big dish) ba

Voyager 1 has a large 12-foot diameter directional radio antenna that it keeps pointed at Earth. If you look at photos of Voyager, the antenna (the big dish) basically is most of what you see: it's bigger than everything else on craft. There are radio antennas across the Earth listening to its very weak signal. More details: https://space.stackexchange.com/questions/24338/how-to-calculate-data-rate-of-voyager-1 https://space.stackexchange.com/questions/24338/how-to-calcu...