The NEO Foundation's efforts have been directed toward developing techniques and performing observations to discover, characterize, and monitor near Earth objects (NEOs) which may potentially impact the Earth. The main thrust has involved the utilization of traditional optical instruments. Recognizing that non optical techniques also hold great promise, these methods will be an ongoing area of inquiry.
Radar Observations of Asteroids... Overview by Scott Hudson of Washington State University
Asteroid Radar Research - JPL
Radar-Detected Asteroids - JPL
Small-Body Astrometric Radar Observations - JPL
Radio Observation of Meteors, International Meteor Organization
NASA's Global Meteor-Scatter Network
Meteor Scatter Observation with VHF Radio & Computer... by Ilkka Yrjola
The Society of Amateur Radio Astronomers (SARA)
Radio Astronomy Supplies
The Ramses Project
Resolution Radar Images of Asteroid 216 Kleopatra Released
According to a NASA press release astronomers from Cornell University and NASA "have collected the first-ever radar images of a "main belt" asteroid, a metallic, dog bone-shaped rock the size of New Jersey, an apparent leftover from an ancient, violent cosmic collision. The asteroid, named 216 Kleopatra, is a large object in the main asteroid belt between Mars and Jupiter; it measures about 135 miles (217 kilometers) long and about 58 miles (94 kilometers) wide. Kleopatra was discovered in 1880, but until now, its shape was unknown. The 1,000-foot (305- meter) telescope of the Arecibo Observatory in Puerto Rico was used to make the radar measurements.
Two radio telescopes, Goldstone and Arecibo are most frequently used for radar astronomy on asteroids.
Asteroid Radar Opportunities with the Upgraded Arecibo Telescope
National Radio Astronomy Observatory - Green Bank West Virginia