Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.

Packet radio is a method of sending blocks of digital information in packets over radio frequencies. Several forms of packet radio exist, including amateur packet radio, cellular packet radio, and satellite packet radio. Packet radio systems benefit from most of the features of packet-switching systems as described under Packets and Packet-Switching Networks"

This topic continues in "The Encyclopedia of Networking and Telecommunications" with a discussion of the following:

• Benefits and features of packet radio systems
• Packet radio use in the early Internet
• The ALOHA system
• CDPD (Cellular Digital Packet Data)
• GPRS (General Packet Radio Service)
• Packet radio messaging systems
• Mobitex two-way wireless communication services for mobile users
• Satellite packet radio systems such as Motient (formerly ARDIS)
• Amateur packet radio systems

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