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2. Fldigi - Wikipedia

   en.wikipedia.org/wiki/Fldigi

   Fldigi (short for Fast light digital) 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. Slow-scan television - Wikipedia

   en.wikipedia.org/wiki/Slow-scan_television

   The audio would be attached to a radio receiver and transmitter. Current systems. A modern system, having gained ground since the early 1990s, uses a personal computer and special software in place of much of the custom equipment. The sound card of a PC, with special processing software, acts as a modem. The computer screen provides the output.

4. WSPR (amateur radio software) - Wikipedia

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

   WSPR (pronounced "whisper") is an acronym for Weak Signal Propagation Reporter. It is a protocol, implemented in a computer program, used for weak- signal radio communication between amateur radio operators. The protocol was designed, and a program written initially, by Joe Taylor, K1JT. The software code is now open source and is developed by ...

5. 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 ...

6. WSJT (amateur radio software) - Wikipedia

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

   WSJT (amateur radio software) WSJT-X is a computer program used for weak- signal radio communication between amateur radio operators. The program was initially written by Joe Taylor, K1JT, but is now open source and is developed by a small team.

7. List of software-defined radios - Wikipedia

   en.wikipedia.org/.../List_of_software-defined_radios

   List of software-defined radios. This article provides a list of commercially available software-defined radio receivers . Embedded or True IQ data via 1 x USB 3.1 GEN 1. Internet remote via HTTP / JSON. Embedded or True IQ data via 1 x or 2 x USB 3.0. Optional 1 x USB 3.1 GEN2 (power only). Internet remote via HTTP / JSON.

8. List of amateur radio software - Wikipedia

   en.wikipedia.org/wiki/List_of_amateur_radio_software

   Software tools Software License Operating Systems Category CW Skimmer Proprietary Windows morse code decoding EchoLink Freeware Windows, iOS, Android VoIP IRLP Proprietary Linux VoIP Fldigi GPL Windows, macOS, Linux, Android, FreeBSD Modem for RTTY, (B)PSK, CW, Feld Hell, MFSK, Oliva, and more. Flrig Rig control companion program Flarq A utomatic R epeat re Q uest companion program for Fldigi ...

9. Amateur radio - Wikipedia

   en.wikipedia.org/wiki/Amateur_radio

   Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communications. [1] The term "amateur" is used to specify "a duly authorized person interested in radioelectric ...