Packet radio in the amateur service
Abstract
Amateur radio packet data communications have utilized primarily dedicated microprocessor systems called terminal node controllers (TNCs). TNCs are single board computers needing only a terminal for operator input/output and a modem to be connected to the radio transceiver. It is pointed that a TNC is typically connected to a host computer or terminal with an RS-232 DCE (data communications equipment) connector. This permits a host (personal computer or mainframe) to use the TNC as if it were a conventional telephone modem. Aspects of hardware, software, and protocol development for amateur radio packet data communications are discussed, taking into account early developments in Canada, developments in the U.S., link level protocol, and higher level protocol. Attention is given to modems and modulation, packet network examples, operations and experiments, and amateur packet radio via satellite.
- Publication:
-
IEEE Journal on Selected Areas in Communications
- Pub Date:
- May 1985
- Bibcode:
- 1985IJSAC...3..431K
- Keywords:
-
- Broadcasting;
- Hardware;
- Network Control;
- Packet Transmission;
- Radio Equipment;
- Radio Transmission;
- Frequency Modulation;
- Frequency Shift Keying;
- Microprocessors;
- Modems;
- Phase Shift Keying;
- Protocol (Computers);
- Satellite Transmission;
- Communications and Radar