Practical radio communication : principles, systems, equipment, operation, including very high and ultra-high frequencies and frequency modulation / Arthur R. Nilson and J. L. Hornung Radio communication. Nilson, Arthur Reinhold, 1897-1945. Hornung, Julius Lawrence, 1898- joint author. Radio. TK6550 .N5 1943 621.334 23 NIP Text on lining papers. "Companion volume [to] Radio operating questions and answers."--p. v. Includes bibliographical references and index. New York, McGraw-Hill, c1943. c1943. 1943 Text xxiii, 927 p. : eng A McGraw-Hill practical manual