Radio age research, manufacturing, communications, broadcasting, television (1941)

a fine job and is proving its eflfec- tiveness." Commenting on the performance iif radar aboard his tug. Chief Mate Fred C. Schweigel said: "Radar is an aid when navigating approaches to the Victory. Addison and Penn- sylvania R.R. bridges in the Rari- tan River through narrow channels. It is also helpful when crossing the European and Southern route steamship lanes and when making the hazardous entrance to the nar- row channel at Sandy Hook, beset by terrific sets of tides. Radar helps us watch the buoys and keep in the narrow channel." For all its proved effectiveness, the 3.2-centimeter Radiomarine radar is neither massive nor diffi- cult to operate. A complete installa- tion consists of only three units, two of which are usually placed in the wheelhouse. The third unit, the griddle-like antenna is mounted atop one of the ship's masts. The indicating unit contains the 12-inch radar scope and is located alongside the wheel where it can be easily viewed. As navigating con- ditions change, the details made available on the scope may be changed to conform. By the simple twist of a knob, the scope picture may be altered instantly to cover a range of lyo, 5, 15 or 50 miles. Objects as close as 80 yards are discernible on the IV2 mile range. A complete picture of the range under view is obtained by the re- volving radar antenna. By means of an electronic switching system, this antenna sends out a brief radio pulse of extremely short duration and an instant later acts as a re- ceiving antenna to pick up the re- turning "echo" of that pulse. These pulses, returning many thousands of times a second from any and all obstacles encountered, are coordi- nated on the scope and re-create the I'adar view of the area. RAY D. KELL WILLIAM H. CHERRY DR. JAN A. RAJCHMAN THREE SCIENTISTS HONORED RCA Lahoratorics Staff Members Receive Awards from The Franklin Institute MEDALS for their contribu- tions to the field of electron- ics were awarded Ray D. Kell, Dr. Jan A. Rajchman, and William H. Cherry of RCA Laboratories, Princeton, N. J., by The Franklin Institute, at Medal Day ceremonies in Philadelphia, on October 20. Kell, director of television re- search, received the Stuart Ballan- tine Medal for "his outstanding pioneer work in television, the adap- tation of this means of communi- cation to military needs, and for his inventive contributions and leader- ship in the development of color television." Kell was graduated from the Uni- versity of Illinois in 1926, with a B.S. degree. Following three years of association with the General Electric Company at Schenectady, N. Y., he joined the RCA Victor Division of RCA at Camden, N. J., where, from 1930 to 1942, many of the components of the present tele- vision system were developed under his direction. These included the first high-power, high-frequency television transmitter, the first iconoscope camera, the first remote pick-up and radio relay. Since 1942 he has been directing television research at the RCA Laboratories, Princeton, N. J. The all-electronic simultaneous color television system is one of the latest results of this work. In 1940 he received a Modern Pioneer Award from the National Association of Manufacturers, and in 1947 a Fellowship Award in the Institute of Radio Engineers. Both awards were for his contributions to tele- vision. The Institute's 1948 Levy Medal was awarded to Dr. Rajchman and Cherry, research physicists at the Laboratories, in recognition of their paper "The Electron Mechanics of Induction Acceleration," which ap- peared in the April and May, 1947, issues of the Journal of The Frank- lin Institute. Dr. Rajchman was born in Lon- don, England, in 1911. He received his diploma in Electrical Engineer- ing in 1934 and the degree of Doctor of Technical Sciences in 1938 from the Swiss Federal Institute of Technology. In 1936 he joined the staflF of the RCA Manufacturing Company as a research engineer and in 1942 was transferred to the RCA Laboratories in Princeton as a re- search physicist. He has been chiefly responsible for the develop- ment of the electron multiplier. He is a member of Sigma Xi, Amer- ican Physical Society, and Institute of Radio Engineers. Cherry is a graduate of the Massachusetts Institute of Tech- nology, where he received his degree of Bachelor of Science in physics in 1941. In August of the same year he joined the RCA Manufacturing Company in Harrison, Xew Jersey, and in 1942 he was transferred as a research physicist to the RCA Laboratories at Princeton. At pres- ent, Cherry is working in the RCA television group and carrying on graduate studies in physics at Princeton University. He is a mem- ber of Sigma Xi. [RADIO AGE 21]