What is the name for the additional signal used to transmit music programming that is usually commercial-free but paid for by subscription?
A)PLL FM demodulator
B)Subsidiary communication authorization
C)Quadrature detector
D)Foster-Seeley discriminator

Question

Quizplus · Accepted Answer

The additional signal used to transmit music programming that is usually commercial-free but paid for by subscription is called a Subsidiary Communication Authorization (SCA). This type of programming is typically used for specialized content such as background music for businesses or niche markets like classical music or jazz. The other answer options (PLL FM demodulator, quadrature detector, Foster-Seeley discriminator) are all technical terms related to radio signal processing but do not describe the specific type of programming in question.

What Is the Name for the Additional Signal Used to Transmit