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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.
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Ham RadioLicense
GNU General Public License version 3.0 (GPLv3)Follow fldigi
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User Reviews
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Hi, I am using a Mac Mini with Apple M2 chip running MacOs 15.0.1. Fldigi still does not open on this platform; It opens and immediately closes. I hope you can fix this; I really miss this app.
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The latest version of FLAMP (2.2.13) does not seem to be able to send selected blocks such as from a fetch operation. I cannot find an older version to install in its place.
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It works well. I tried for two days to connect this to the IC-7300.
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I'm running FLDIGI on Ubuntu 22.04.03 on both Dell i7 Latitude and on Raspberry Pi 400 and on stupid Windows 11. The Linux machines are definitely better for audio. (1) Windows does not automatically give me audio. I have to keep screwing with it then eventually i get audio after about a half hour. All sliders are maxed and the only audio I can hear with the "monitor" function of my 7300 is very faint and no ALC. A real mystery, Happens every day I try to use it. Until I happen to do something (???) and then I get audio. (2) Raspberry Pi was running it very well. Then, after weeks of running well, it started taking 1-1.5 seconds to move the mouse and the water fall was slow. No issue with FLRIG. It runs fine with out FLDIGI running. As soon as FLDIGI is started, the Raspberry Pi slows to a craw. Unusable. Then, out of the blue it ran great one night on Olivia net. Now its back to a craw. Tried removing FLDIGI and re-installing. In both cases I installed from repository using apt and apt-get. Current version is 4.1.20 I down loaded the latest version from sourceforge. However, the tar scares the crap out of me. I don't want to build the task. a deb would be great.
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Have been trying to install and run Fldigi 2.4.0.0. It wants to start, then shuts down. No error code or message. I am running it on a Win 8 computer. I first downloaded and ran Fldigi about 3 years ago, no problem. I do not know if this is being caused by a Win update of some sort, or if it is the Fldigi. Bottom line: can not get it to run. Help! Thanks, John/KA5SWC