FM channel separation adjustment.

摘要

An attenuator (18,20,22) in the composite L-R signal path used for dynamic signal control for blend purposes is limited in range by a static separation adjustment signal which attenuates the maximum L-R signal to a value selected for the best right and left channel separation upon matrixing of the L+R and L-R signals. The gain (24) of the L-R signal path is set greater than the L+R path so that a wide adjustment range is available to the separation adjustment circuit.