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Packet radio started becoming more and more popular across North America and by 1984 the first packet-based bulletin board systems began to appear. Packet radio proved its value for emergency operations following the crash of an Aeromexico airliner in a neighborhood in Cerritos, California, in August, 1986. Volunteers linked several key sites ...
General Packet Radio Service ( GPRS ), also called 2.5G, [a] is a mobile data standard on the 2G cellular communication network's global system for mobile communications (GSM). [1] Networks and mobile devices with GPRS started to roll out around the year 2001. [2] At the time of introduction it offered for the first time [b] seamless mobile ...
Automatic Packet Reporting System ( APRS) is an amateur radio -based system for real time digital communications of information of immediate value in the local area. [1] Data can include object Global Positioning System (GPS) coordinates Non-directional beacon, weather station telemetry, text messages, announcements, queries, and other telemetry.
PRNET. The Packet Radio Network ( PRNET) was a set of early, experimental mobile ad hoc networks whose technologies evolved over time. It was funded by the Advanced Research Projects Agency (ARPA). Major participants in the project included BBN Technologies, Hazeltine Corporation, Rockwell International 's Collins division, and SRI International .
ALOHAnet. ALOHAnet, also known as the ALOHA System, [1] [2] [3] or simply ALOHA, was a pioneering computer networking system developed at the University of Hawaii. ALOHAnet became operational in June 1971, providing the first public demonstration of a wireless packet data network. [4] [5]
AX.25. AX.25 (Amateur X.25) is a data link layer protocol originally derived from layer 2 of the X.25 protocol suite and designed for use by amateur radio operators. [1] It is used extensively on amateur packet radio networks. AX.25 v2.0 is responsible for establishing link layer connections, transferring data encapsulated in frames between ...