Fldigi is a modem program for most of the digital modes used by radio amateurs today: CW, PSK, MFSK, RTTY, Hell, DominoEX, Olivia, and Throb are all supported. It can help calibrate a sound card to a time signal and do frequency measurement tests.

NOTICE: You must proceed to the Files section to locate the correct fldigi, flrig etal download for your particular operating system. Do not blithely use the big green Download button! Use the "Files" menu item or the "Browse All Files" link.

Project Samples

Project Activity

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Categories

Ham Radio

License

GNU General Public License version 3.0 (GPLv3)

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User Reviews

  • fldigi-4.1.04.01_x86_64.dmg and fldigi-4.1.03_x86_64.dmg will not install on Mac El Capitan / 10.11.6: "no mountable filesystems". To build from source, you will need FLTK, I don't know how to build that from source. Also, how do I contact the Fedora builders regarding bugs in the Fedora release? The Fedora 28 builds are not working either: fldigi crashes when flmsg is started. This is fldigi 4.0.01-1.fc28 and flmsg 4.0.7-1.fc28.
  • Great software. I just wish it would get ported to run on iOS as well as support FT8, JT65, JT9. It would be amazing to be able to run this from an iPhone for SOTA & field day.
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Additional Project Details

Operating Systems

Linux, BSD, Mac, Windows

Languages

French, Polish, Italian, German, Spanish

Intended Audience

End Users/Desktop

User Interface

X Window System (X11), Win32 (MS Windows), Cocoa (MacOS X), FLTK

Programming Language

C++, C

Related Categories

C++ Ham Radio Software, C Ham Radio Software

Registered

2011-09-30