Total posts : 45366
From post #6 it sounds as if this might describe a system operating in the FM broadcast band. If so, and compliance with Part 15.239 is desired, then the signal radiated by such an unlicensed system is limited to a field strength of 250 µV/m at a distance of 3 meters from the transmit antenna (see FCC §15.239). The useful service radius for such as signal to an indoor, consumer-level FM receiver is only a few hundred feet.
As a “heads up,” the FCC is fairly active at issuing citations to unlicensed operators of FM systems having coverage ranges of several miles.
