Low Power FM Broadcast Radio Stations
The Low Power FM (LPFM) radio service, which was created by the Commission in January 2000. These stations are authorized for noncommercial educational broadcasting only (no commercial operation) and operate with an effective radiated power (ERP) of 100 watts (0.1 kilowatts) or less, with maximum facilities of 100 watts ERP at 30 meters (100 feet) antenna height above average terrain (HAAT). The approximate service range of a 100 watt LPFM station is 5.6 kilometers (3.5 miles radius). LPFM stations are not protected from interference that may be received from other classes of FM stations. A construction permit is required before a LPFM station can be constructed or operated.
LPFM radio stations are available to noncommercial educational entities and public safety and transportation organizations, but are not available to individuals or for commercial operations. Current broadcast licensees with interests in other media (broadcast or newspapers) are not eligible to obtain LPFM stations.
LPFM radio stations must protect authorized radio broadcast stations on the same channel or frequency (cochannel), as well as broadcast stations on first, second, or third-adjacent channels above or below the LPFM station’s frequency. This protection is accomplished through the use of minimum distance separation requirements, which are set forth in 47 CFR 73.807
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