The first 6502 based BBC microcomputers were produced on December 1, 1981. They proved popular with radio amateurs who used them for RTTY, Cambridge Packet Radio, SSTV and running the AMSAT-UK software library.
The Cambridge Packet Radio software was popular in the years before the widespread adopton of the AX.25 standard. The free software enabled users to send and receive packet radio direct from the BBC Micros cassette tape interface without needing a seperate modem. Software for other modes required an additional modem interface such as the IGADUMA which was produced by radio amateurs in Hertfordshire. Continue reading