“Only a few telescopes in the world have received these signals, which are very faint due to the distance of Voyager 1: almost 25 billion kilometers, more than four times the distance to Pluto.”
Volunteers pulled Voyager 1’s 8.4 GHz carrier out of the noise with a 25-meter dish built in 1956 and now a national monument. They had to mount a new antenna because the telescope was never designed for those frequencies. The signal takes 23 hours to arrive. A 1977 spacecraft and a 1956 dish, run by amateurs, still work better than most things shipped this year.