I believe the dark side of the moon would be more apt for radio astronomy. The obvious reason being that the Moon is blocking interference of artificial radio signals on Earth.
The moon is interfering with radio signals? Doesn't this only happen if the moon is literally blocking line of sight? It seems like being outside of earth's atmosphere and ionosphere would be the biggest benefit for radio.
The moon is basically a giant reflector for (many bands of) radio. The reason the US government funded so many radio telescope arrays was to monitor Soviet ballistic missile tests, by looking at signals reflected off the moon.
