Title :
Intermediate-Frequency Values for Frequency-Modulated-Wave Receivers
Author :
Foster, Dudley E. ; Rankin, John A.
Author_Institution :
Formerly, RCA License Laboratory, New York, N.Y.; now, Rogers-Majestic, (1941), Ltd., Toronto, Ont., Canada
Abstract :
The selection of an intermediate frequency for a super-heterodyne receiver involves consideration of the signal frequency, the tuning range, the pass-band width, the minimizing of spurious responses, regeneration stability, and frequency stability. The consideration of the frequency-modulation broadcast band of 42 to 50 megacycles illustrates the manner in which these several factors affect the choice of intermediate frequency.
Keywords :
Broadcasting; Cities and towns; Laboratories; Licenses; Radio frequency; Radio transmitters; Receivers; Stability; Transmitting antennas; Tuning;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1941.232676
