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2. List of amateur radio software - Wikipedia

   en.wikipedia.org/wiki/List_of_amateur_radio_software

   Proprietary. macOS. MacLoggerDX is a full-featured amateur radio contact logger for macOS with Transceiver control, Rotor control, Callbook lookup, QSL handling (Hardcopy / LoTW / eQSL / Club Log), DX Cluster and spotting, and basic contesting support. It also works with WSJT-X to control the transceiver while making digital contacts, etc.

3. QRP operation - Wikipedia

   en.wikipedia.org/wiki/QRP_operation

   QRP operation. A homebrew QRP low-power transmitter and receiver that fits inside an Altoids tin. In amateur radio, QRP operation refers to transmitting at reduced power while attempting to maximize one's effective range. QRP operation is a specialized pursuit within the hobby that was first popularized in the early 1920s.

4. Software-defined radio - Wikipedia

   en.wikipedia.org/wiki/Software-defined_radio

   Software-defined radio ( SDR) is a radio communication system where components that conventionally have been implemented in analog hardware (e.g. mixers, filters, amplifiers, modulators / demodulators, detectors, etc.) are instead implemented by means of software on a computer or embedded system. [1] While the concept of SDR is not new, the ...

5. Contact (amateur radio) - Wikipedia

   en.wikipedia.org/wiki/Contact_(amateur_radio)

   An amateur radio contact, more commonly referred to as simply a "contact", is an exchange of information between two amateur radio stations. The exchange usually consists of an initial call, a response by another amateur radio operator at an amateur radio station, and a signal report. A contact is often referred to by the Q code QSO.

6. List of BBS software - Wikipedia

   en.wikipedia.org/wiki/List_of_BBS_software

   Opus-CBCS – first written by Wynn Wagner III. PCBoard. PegaSys. ProBoard BBS – written by Philippe Leybaert (Belgium) QuickBBS – written by Adam Hudson, with assistance by Phil Becker. RBBS-PC. RemoteAccess – written by Andrew Milner. Renegade – written by Cott Lang until 1997. Currently maintained by T.J. McMillen since 2003.

7. D-STAR - Wikipedia

   en.wikipedia.org/wiki/D-STAR

   D-STAR. ICOM IC-91AD handheld transceiver with the D-STAR UT-121 digital voice board installed. D-STAR ( Digital Smart Technologies for Amateur Radio) is a digital voice and data protocol specification for amateur radio. The system was developed in the late 1990s by the Japan Amateur Radio League and uses minimum-shift keying in its packet ...