Some listeners have reported hearing numbers stations, mysterious broadcasts of spoken numbers believed to be spy communications.
This is called intermodulation, where signals mix due to poor circuitry or overload, creating unintended combinations.
Yes—but only at very low power under Part 15 FCC rules (in the U.S.), such as short-range FM transmitters used in drive-in theaters.
Yes—but only at very low power under Part 15 FCC rules (in the U.S.), such as short-range FM transmitters used in drive-in theaters.
An unlicensed radio broadcast—often used for underground music, political speech, or community messages—operating outside legal limits.
