11. Not long after this activity began in Canada, amateurs in the US became interested in packet radio . 12. The most common use of packet radio today is in amateur radio, to construct wireless computer networks. 13. Volunteers linked several key sites to pass text traffic via packet radio which kept voice frequencies clear. 14. Atlantis carried amateur radio equipment for voice contact, fast scan and slow scan TV, and packet radio . 15. In the 1980s, packet radio became the most common form of digital communications used in amateur radio. 16. The operator also will provide more advanced services in major cities, including GPRS, or general packet radio service. 17. Another type of 1-way satellite Internet system uses General Packet Radio Service ( GPRS ) for the back-channel. 18. Beacons in traditional AX . 25 amateur packet radio networks contain free format information text, readable by human operators. 19. :: Take a look at packet radio , which was a precursor to the modern 802.11 family of wireless protocalls. 20. In addition radio amateurs maintain a small relay station on the mountain for voice radio, packet radio , and amateur television.
