Packet Radio is a digital radio protocol that evolved from previous digital radio protocols like Morse code or Teleprinter. Packet Radio is frequently used by amateur radio operators.
See: [https://youtu.be/ZC-RXBuUatA Demonstration of Packet Radio transmission with an Amstrad CPC] [https://youtu.be/OvTnnRHL4wY Amstrad CPC connecting to BPQ Chat and DX Cluster via Packet Radio]
== FM radio diffusion ==