| The 70m antenna at MDSCC, the Robledo DSN station |
| The IRAM 30m antenna at Pico Veleta |
| The Very Large Array (VLA) of NRAO |
| The Very Large Baseline Array (VLBA) of NRAO |
| The Australia Telescope Compact Array (ATCA) of ATNF |
| The SubMillimeter Array (SMA) of SAO and ASIAA |
| The Combined Array for Research in Millimeter-wave Astronomy (CARMA) of NSF |
| The Plateau de Bure Interferometer (PDBI) of IRAM |
| In the past: The Haystack 37m radio telescope of MIT |
