The El Campo radar built by the Lincoln Laboratory detected 38 MHz radar echos from the Sun in the 1960's. Huge, rapidly-moving ``targets" were occasionally observed but this was before the space-borne coronagraph discovery of coronal mass ejections (CMEs), and the physical nature of these targets was a mystery. We now recognize that CMEs were being observed and that a low frequency transmitter coupled with a high angular resolution receiving array would form an extremely effective system to detect and track CMEs. The combination of Doppler and angular measurements would fully determine the velocity vector of the CME and should provide a reliable prediction of those CMEs that will strike the Earth's magnetosphere. This topic is of great practical importance because the geophysical effects caused by CMEs can cause hundreds of millions of dollars damage to spacecraft, communication, and electrical power systems.
Appropriate transmitting facilities now exist in the form of Over-the-Horizon Radars that are no longer required for military purposes. However, appropriate receiving facilities are needed for such a project.