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]
[https://www.cpc-power.com/index.php?page=detail&num=13843 CP/M+ Packet-Radio software]
== FM radio diffusion ==