 Elkins was part of a team of Rome Air Development Center (RADC) engineers that developed and constructed components for frequency modulation/continuous wave (FM/CW) radars capable of detecting and tracking objects at over-the-horizon ranges.A prototype radar was installed and evaluated on 15 September 1970.The system incorporated a Beverage array receive antenna (located at Columbia Air Force Station), a high-power transmitter array (located at Moscow Air Force Station), and an operations center (located at Bangor Airport).