What is the frequency range for FM radio signals?

The frequency range for FM radio signals is defined by the Federal Communications Commission (FCC) in the United States as 87.5 MHz to 108 MHz. This range is significant because it encompasses the frequencies used for most commercial FM radio stations, allowing for a diverse array of stations and programming options for listeners.

The lower limit starts at 87.5 MHz, which is important for accommodating the spacing between stations and preventing interference. The upper limit of 108 MHz establishes a clear boundary for the FM broadcast band. This range effectively supports stereo sound quality and provides better reception compared to AM radio.

While other options suggest varying ranges, they either extend below the accepted starting frequency or too far beyond the maximum limit for FM broadcasts. Thus, the range of 87.5 MHz to 108 MHz is the correct answer, reflecting the standard frequencies allocated for FM transmission.