Low-power FM
LPFM is the concept of
broadcasting in the
FM band at very low power and low cost, to a small community area.
In the U.S., the FCC has finally re-legalized LPFM licenses, after the NAB, CPB, and NPR convinced them to stop issuing the FM class D license in 1978, which forced many stations off the air.
- Class L1 is over 10, up to 100 watts ERP.
- Class L2 is at least 1, up to 10 watts ERP.
- Class D is 10 watts TPO or less, regardless of ERP.
- Class D licenses are no longer issued (since 1978).
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