Radio — “Telegraphy without wires” — preceded the internet by about 100 years. We limit our break down of radio technology standards to, (1) Security and maintenance personnel radio, (2) Broadcast and student radio. Radio technology is regulated by the @FCC in the US and by the @IECStandards and the @ITU internationally. We do not cover content issues; though we cover the technology that supports those content enterprises and the emergence of electromagnetic spectrum in the Internet of Things.