Stereophonic FM Broadcasting

In arriving at a suitable choice of transmission parameters for stereophonic FM broadcasting, consideration must be given to several factors, as follows: 1. The modulation choice should provide an aurally-balanced program for the monophonic listener. 2. A reasonable compromise should be made between the stereophonic signal-to-noise ratio and the monophonic signal-to-noise ratio as compared to monophonic broadcasting. 3. Receivers designed for the system should be capable of reliable operation yet should be reasonably inexpensive. 4. If possible, the system should provide an additional channel for other services without degrading the desired service.