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.
Screenshots
Observed history
| App | Change | Version | When ↑ |
|---|
No observed changes yet.
The initial import establishes a baseline. Future version changes will appear here.
Browse the app catalogue →Upstream releases
Release notes supplied by the developer. These dates are not Flathub package publication times.
4.2.1330 Jul 2026
No release notes supplied.
4.2.129 Jul 2026
No release notes supplied.
4.2.0611 Oct 2024
No release notes supplied.
4.2.0523 Apr 2024
No release notes supplied.