Analysis of Main-channel Crosstalk in Multiplex-sound TV Receivers

Abstract

This paper carries the analysis of crosstalk from sub-channel to main-channel of the multiplex-sound television receivers by theoretically examining the relationships between the crosstalk components and the various characteristics of the receiver circuits and reveals the mechanism of development of this crosstalk.
The authors point out that the above crosstalk is produced mainly as the nonlinear phase and amplitude distortion products of the sub-channel signal and the buzz and buzz beat components in the sound signal.
It is confirmed that the experimental results agree qulitatively with the theoretical analysis and the means to reduce the crosstalk are proposed.