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Packet radio. Form of amateur radio data communications using the AX25 protocol. Terminal Node Controller 2400 baud packet radio modem. In digital radio, packet radio is the application of packet switching techniques to digital radio communications. Packet radio uses a packet switching protocol as opposed to circuit switching or message ...
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 ...
APRS (Automatic Packet Reporting System), is a digital communications protocol for exchanging information among a large number of stations covering a large (local) area, often referred to as " IP -ers". As a multi-user data network, it is quite different from conventional packet radio. Rather than using connected data streams where stations ...
KISS (amateur radio protocol) KISS (Keep It Simple, Stupid [1]) is a protocol for communicating with a serial terminal node controller (TNC) device used for amateur radio. This allows the TNC to combine more features into a single device and standardizes communications. KISS was developed by Mike Cheponis and Phil Karn to allow transmission of ...
Wireless ad hoc network. A wireless ad hoc network[1] (WANET) or mobile ad hoc network (MANET) is a decentralized type of wireless network. The network is ad hoc because it does not rely on a pre-existing infrastructure, such as routers or wireless access points. Instead, each node participates in routing by forwarding data for other nodes.
In telecommunications, packet switching is a method of grouping data into short messages in fixed format, i.e. packets, that are transmitted over a digital network. Packets are made of a header and a payload. Data in the header is used by networking hardware to direct the packet to its destination, where the payload is extracted and used by an ...
Coaxial cavity RF filter at 2 meter repeater. An amateur radio repeater is an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. Many repeaters are located on hilltops or on tall buildings as the higher ...
The AMPRNet (AMateur Packet Radio Network) or Network 44 is used in amateur radio for packet radio and digital communications between computer networks managed by amateur radio operators. Like other amateur radio frequency allocations , an IP range of 44.0.0.0 / 8 was provided in 1981 for Amateur Radio Digital Communications (a generic term ...