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2. Fldigi - Wikipedia

   en.wikipedia.org/wiki/Fldigi

   Fldigi (short for Fast light digital) [4] is a free and open-source program which allows an ordinary computer's sound card to be used as a simple two-way data modem.The software is mostly used by amateur radio operators who connect the microphone and headphone connections of an amateur radio SSB or FM transceiver to the computer's headphone and microphone connections, respectively.

3. Data General - Wikipedia

   en.wikipedia.org/wiki/Data_General

   Data General (DG) was founded by several engineers from Digital Equipment Corporation who were frustrated with DEC's management and left to form their own company. The chief founders were Edson de Castro, [2] Henry Burkhardt III, and Richard Sogge of Digital Equipment (DEC), and Herbert Richman of Fairchild Semiconductor. [3]

4. WSJT (amateur radio software) - Wikipedia

   en.wikipedia.org/wiki/WSJT_(amateur_radio_software)

   WSJT, the predecessor to WSJT-X, was originally released in 2001 and has undergone several major revisions. Communication modes have been both added and removed from the software over the course of its development. Since 2005, the software has been released as open source software under the GNU General Public License. This licensing change ...

5. WSPR (amateur radio software) - Wikipedia

   en.wikipedia.org/wiki/WSPR_(amateur_radio_software)

   The software code is now open source and is developed by a small team. The program is designed for sending and receiving low-power transmissions to test propagation paths on the MF and HF bands. WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions.

6. DataEase - Wikipedia

   en.wikipedia.org/wiki/DataEase

   DataEase is a relational database management system (RDBMS), and is considered a rapid application development tool for developing relationally-organized, data-intensive software applications for personal computers. DataEase was created in the early 1980s by software developers Arun Gupta [1] and Joseph Busch. The first version of the software ...

7. List of shortwave radio broadcasters - Wikipedia

   en.wikipedia.org/wiki/List_of_shortwave_radio...

   Domestic Afrikaans-language radio service operated by the SABC. Used shortwave to reach remote areas of South Africa. Shortwave transmissions discontinued with closure of Meyerton transmitter but remains available on FM, satellite, and online. [11] South Korea KBS World Radio: 1953 Yes Yes KBS Hanminjok Radio: 1972 Yes Jammed by North Korea ...

8. Shortwave listening - Wikipedia

   en.wikipedia.org/wiki/Shortwave_listening

   A Sangean ATS-909 world band receiver. Shortwave listening, or SWLing, is the hobby of listening to shortwave radio broadcasts located on frequencies between 1700 kHz and 30 MHz (30 000 kHz). [1]

9. R. L. Drake Company - Wikipedia

   en.wikipedia.org/wiki/R._L._Drake_Company

   For short wave listeners, Drake produced the SW-4 receiver in 1967 (and later the SW-4A), which matched the rest of the 4-Line in appearance, was based on the R-4 design, but greatly simplified to be easier for the casual listener to use. It was replaced in 1973 by the SPR-4, a receiver similar in appearance to the R-4C but, again, simplified ...