Rca1948FrequencyModu.. - The New Jersey Antique Radio Club

SERVICE RANGE OF FREQUENCY MODULATION 2295In an unpublished engineering report written in July (1933) andentitled: "Tests of a System for Reducing Interfering Noises in RadioTransmission", Messrs. I. Wolff, G. L. Beers, and L. F. Jones of RCA ManufacturingCompany describe tests which indicated improvements of from8 to 10 decibels in an amplitude-modulation program system.6 1. R. Weir, Comparative Field Tests of Frequency-Modulation andAmplitude-Modulation Transmitters, Proc. The Radio Club of America,Vol. 16, No. 2; July (1939).7 C. V. Aggers, Dudley E. Foster, and C. S. Young, Instruments andMethods of Measuring Radio Noise, A.I.E.E. Technical Paper 39-Hb, Preprintedfor A.I.E.E. Pacific Coast Convention, San Francisco, Calif., June26-30, 1939.