 In addition to his work at Hanscom Air Force Base, much of his early research was also conducted at Sagamore Hill Radio Observatory, a ground-based solar observatory located in Hamilton, Massachusetts.Sagamore Hill Solar Radio Observatory is a functional component of the Radio Solar Telescope Network (RSTN).In 1980, he developed and published an auroral echo-scattering model to predict the obscuration of targets when the radar transmission path is through the auroral region.