The 88.1 – 91.9 frequency range is reserved for non-commercial radio stations in the US. These are usually low powered stations that are self funded, and the main entities willing to self fund such a station are religious in nature. The 92.X frequency band is available for commercial radio stations but can act as an overflow when there are too many non-commercial stations in an area to fit in the 88.1 – 91.9 band.
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