Installing FLdigi.

Introduction

The Fldigi package is a program that runs on almost all computer platforms, designed to transmit and receive both digital modes and CW, using macros or text input from the computer keyboard. CW transmission from the key is also possible during pauses in automatic transmission. For digital modes, Fldigi outputs audio through the sound card. The program is connected to the hardware log FLlog and the transceiver control program FLrig. The following modes are supported:

• CW
• RTTY
• PSK
• QPSK
• Contestia
• DominoEX
• MFSK
• MT63
• Olivia
• Thor
• Throb
• Hell
• FSQ
• and others, except for the types FT-8/FT-4/JT65A (which wsjtx uses) and SSTV (in the qsstv program).

The program is free (licensed under GNU General Public License version 3) and is available in the repositories of many Linux distributions. On Windows and Mac OS it can be installed by downloading from the resource https://sourceforge.net/projects/fldigi/ russian language is present (translation by Alexandr Kalugin RX9CDR). Program home page:http://www.w1hkj.com/. Fldigi documentation is located at:http://mail.w1hkj.com/FldigiHelp/index_of_contents_page.html.

System Requirements

Approximate system requirements:

• i386 processor or higher (AMD FX / Core2Duo or higher recommended)
• 512 MB RAM (2 GB or higher recommended)
• built-in or external 44.1 kHz sound card. 16 bit (for audio input and output from PC to radio station)
• external interface for controlling the radio station from a computer (CAT interface)
• cables for transmitting audio from a PC to a sound card (audio cables can be virtual, for example, hidden in the USB bus software protocol in the case of amateur radio stations ICOM 7300, etc.)
• keyboard
• mouse
• monitor with a resolution of 800x600 and higher.
• operating system Windows, Linux or MAC OS
• presence of a radio station (if you plan to work on the air)

Useful features of fldigi

1) has a built-in Morse code (CW) decoder - you can control the quality of your transmission and train Morse code transmission.
2) decoder of many digital types, including PACKET, WeFax, Navtex/Sitor-B
3) is able to broadcast TXRsid - a special code identifier for the digital mode, which allows other radio amateurs with the same program to find out in which mode to receive.
4) hardware log FLlog for recording QSOs with uploading to eQSL.cc and LoTW.
5) ability to connect to a DX cluster
6) for applications in the field of natural disasters, it can transmit information with ARQ - acknowledgment of receipt. A separate flarq program.

Installing fldigi on Linux

Ubuntu and Linux Mint

As a result, the version will be installed 4.1.20, which has fldigi documentation.

Debian

Installation using the same commands

sudo apt-get update
sudo apt-get install  fldigi

In the case of the Sid branch, a newer version will be installed 4.1.23.

Installing fldigi version 4.1.23 from a DEB file

Directory for downloading the current version of the program:
https://packages.debian.org/sid/amd64/fldigi/download

In the example version 4.1.23-1:

sudo apt-get remove fldigi

wget http://ftp.ru.debian.org/debian/pool/main/f/fldigi/fldigi_4.1.23-1_amd64.deb
sudo dpkg -i fldigi_4.1.23-1_amd64.deb

Compilation from source codes of programs

This method is only useful for non-standard hardware architectures.
As a rule, the installation methods listed above are sufficient.
The sources can be downloaded from github and the program can be compiled, if desired:

https://github.com/w1hkj/fldigi/

Forums for discussing the fldigi program:

• https://groups.io/g/linuxham/ - Groups.IO forums -> "LinuxHam"
• https://groups.io/g/nbems - discussion of the MBEMS package, which includes the programs fldigi, flarq, flamp, flmsg, flrig, flwrap.
• https://groups.io/g/winfldigi - Fldigi for Windows
• https://www.reddit.com/r/HamRadio/ - HamRadio amateur radio club on Redit
• forum on CQham.ru (444 pages) - Russian forum with a topic on FLdigi (printable version)
• topic on QRZ.ru (484 pages) - Russian forum with a topic on FLdigi
• topics on QRZ.com (100 topics) - English-language conferences on QRZ.com with a mention of fldigi in the topic.

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