The plaque, mounted near the entrance of the building that housed the laboratory, reads:
“On 10 January 1946, a team of military and civilian personnel at Camp Evans, Fort Monmouth, New Jersey, USA, reflected the first radar signals off the moon using modified SCR-270/1 radar. The signals took 2.5 seconds to travel to the moon and back to the Earth. This achievement, Project Diana, marked the beginning of radar astronomy and space communications.”
The IEEE Jersey Coast Section, which nominated the Project Diana site for this honor, elaborated in its supporting documentation on the new scientific possibilities ushered in by the birth of radar astronomy:
“Before 1946, scientists observed the universe using large passive radio telescopes that caught and recorded radio waves emanating from the universe outside the earth’s atmosphere. This technique of passive reception was part of a field known as radio astronomy. Following the success of Project Diana, scientists had access to what is known as radar astronomy. Unlike radio astronomy, this technique is an active observation by reflecting microwaves off objects and analyzing the reflected signal, in the same manner as Project Diana had done with the moon.... The success of the project became a symbol that led to the beginning of the Space Age for the United States.”