Packet radio

From Megawiki

Packet radio is a form of digital data transmission used to link computers. The most common use of packet is in amateur radio, to construct wireless computer networks.

Its name is a reference to the use of packet switching between network nodes, which allows multiple virtual circuits to coexist on a single radio channel. Packet radio networks use the AX.25 data link layer protocol, derived from the X.25 protocol suite and adapted for amateur radio use.