Because of law. The law is that you can’t just transmit radio. The governments of the world have enclosed the electromagnetic commons. Transmitting radio is illegal except as the law allows it. 2.4Ghz is a carve out in the law for unlicensed use. In the USA we call that portion of the law “Part 15”
Because of law. The law is that you can’t just transmit radio. The governments of the world have enclosed the electromagnetic commons. Transmitting radio is illegal except as the law allows it. 2.4Ghz is a carve out in the law for unlicensed use. In the USA we call that portion of the law “Part 15”
https://www.ecfr.gov/current/title-47/chapter-I/subchapter-A/part-15