|“|| The Communotron High-Gain Antenna, model 88-88 allows for long-range, high speed communication.
— Ionic Protonic Electronics
Made by NovaSilisko
Unmanned spacecraft can only be controlled remotely; as such they require an antenna if they are destined to travel far from Kerbin. This antenna has a very long range when open.
They do not close if you toggle them in an action group