ASTRON Netherlands Institute for Radio Astronomy's LOw Frequency ARray is a multi-purpose sensor array. Its main application is astronomy at low frequencies (10-250 MHz).
http://www.lofar.org/
ASTRON NL says: "LOFAR is a powerful next-generation radio telescope for frequencies below 240 MHz that offers revolutionary new observing capabilities thanks to its phased-array technology with digital beam-forming. LOFAR Version 1 already allows novel and cutting-edge science projects, while considerable development is ongoing to reach the full potential of the International LOFAR Telescope (ILT)."
