Back to the InfoAge HomepageBack to the Press Index By Jack
Mofenson, Evans Signal Laboratory, Belmar N.J. Dr. Harold T.
Webb (right) adjusts the auxiliary tuning crystal in the lunar
receiver while E. K. Stodola looks on. Behind Stodola is the
nine-inch type-A indicator which records the echoes. |THE RECENT
EXPERIMENTS performed by the Signal Corps Engineering
Laboratories in receiving radar echoes from the moon have
aroused much comment from engineers, astronomers and others
engaged in technical pursuits. Although the scientific aspects
of sending radio-frequency signals throughthe ionosphere are
certainly of importance, the work done on theproject is better
classified as an engineering achievement. As yet, no long-term
systematic observations have been made. This article is
confined, therefore, to a discussion of the technical
characteristics and general description of the equipment
employed. Briefly, the experiment consisted of transmitting
quarter-second pulses of radio-frequency energy at 111.5 mc
every