Skip to content
Modified version of fldigi - a soundcard decoding program
C++ C Shell Perl NSIS Objective-C
Find file
Pull request Compare This branch is 774 commits ahead of ukhas:master.
Latest commit 1196c2e Aug 23, 2015 @jamescoxon Merge pull request #1 from philcrump/master
Fix compile error: Remove duplicate translation lines from po/de.po
Failed to load latest commit information.
build-aux Make version.cxx updating a little less aggressive Dec 23, 2011
data Merge tag 'v3.21.73' of git:// Nov 29, 2013
flarq_doxygen Doxygen Inclusion Aug 29, 2014
fldigi_doxygen fsq modem Jul 11, 2015
habitat-cpp-connector @ 54a6061 update for habitat-cpp-connector#3 Aug 12, 2015
m4 Merge 3.22.11 Jul 15, 2015
po Remove duplicate translation lines. Aug 23, 2015
scripts Merge git:// May 13, 2015
src fix for weird merge problem, looks like large section was moved and s… Aug 23, 2015
.gitignore Merge remote-tracking branch 'hex/master' Aug 23, 2015
.gitmodules Move/use different submodule Apr 10, 2012
AUTHORS Berlios Dec 24, 2014
AUTHORS.dl-fldigi Updating my callsign Jul 18, 2011
COPYING Update copyright headers Mar 1, 2010
ChangeLog Version 3.22.13 Jul 20, 2015
INSTALL fldigi-shell Apr 18, 2015
INSTALL.dl-fldigi updated INSTALL.dl-fldigi with guides to compile dl-fldigi on OS X, L… Jul 14, 2010
NEWS Version 3.22.02 Dec 1, 2014
README Berlios Dec 25, 2014
README.dl-fldigi Update README.dl-fldigi for merge Nov 20, 2011 Merge 3.22.13 Jul 25, 2015


Fldigi is a software modem for Amateur Radio use. It is a sound card based
program that is used for both transmitting and receiving data in any of the
following modes:

BPSK and QPSK        31, 63, 125, 250 (both), and 63F and 500 (BPSK only)
PSKR                 125, 250, and 500
CW                   speeds from 5 to 200 wpm
DominoEX             4, 5, 8, 11, 16 and 22; also with FEC
Hellschreiber        Feld Hell, Slow Hell, Hell x5/x9, FSKHell(-105) and Hell 80
MFSK                 4, 8, 11, 16, 22, 31, 32 and 64; most with image support
MT63                 500, 1000 and 2000
OLIVIA               various tones and bandwidths
RTTY                 various baud rates, shifts, nbr. of data bits, etc.
THOR                 4, 5, 8, 11, 16 and 22
Throb and ThrobX     1, 2, and 4
WWV                  receive only - calibrate your sound card to WWV
Frequency Analysis   receive only - measure the frequency of a carrier

Fldigi can also control a transceiver using Hamlib or RigCAT I/O, perform online
or cdrom QRZ queries, log QSOs with the built-in logbook or Xlog, and send
reception reports to the PSK Automatic Propagation Reporter.

The latest version can always be found at:

Visit this page for extensive documentation and an archive of XML files for
transceivers supported by RigCAT.

The wiki page contains FAQs and HOWTOs, as well as links to all Fldigi

The GIT repository can be found at:

For support, news and updates, join one or more of the following mailing lists
and Yahoo groups.  Stable releases are announced to all lists and groups; test
(alpha) releases are announced to fldigi-alpha and fldigi-announce.

  * linuxham group
    General discussion on fldigi, related software and other ham radio topics

  * win-fldigi group
    For Windows users of fldigi

  * NBEMSham group
    Special focus on NBEMS operation

  * fldigi-alpha list
    Discussion of fldigi testing and related subjects

  * fldigi-devel list
    Fldigi development topics
Something went wrong with that request. Please try again.