Observations of meteors using over-the-horizon radar

Over-the-horizon skywave radars operating in the HF band utilize digital techniques for both radar control and signal processing. These radars are also equipped with frequency management subsystems for the selection of appropriate frequencies for meteor detection based on real-time monitoring of the HF signal environment. Results of meteor observations using such a radar are discussed, including the detection of the Eta Aquarid meteor. A large increase in the echo rate caused by sporadic meteors is obtained as frequencies are reduced below 15 MHz and the underdense echo ceiling rises in altitude. Preliminary observations of highly Doppler shifted echoes traveling at meteoric velocities and identified as meteor head echoes, are presented.