Tucnak is multiplatform VHF/HF contest logbook. It is executable on Linux and other unix-type systems, Windows, Android and MacOS.
This is free and open source software.
Key Features
- Easy installation – only one binary is sufficient for base usage.
- You can control your rig (SSB PTT and CW). Is also possible to send SSB and CW CQ or transmit CW directly by typing from keyboard.
- Single items (Callsign, WWL, report, etc.) are automatically identified and inserted.
- The searching of typed-in string (Callsign, WWL) in actual log, in logs from other bands and in the C_W database of couple Callsign/WWL. It runs on background.
- Optionally add a remark to a QSO directly from the input line, or set QSL card flag.
- The Wizard for creating a new contest. It automatically sets parameters of a selected contest
- The Database of couple Callsign, World Wide Locator and QRV bands
- The Database of DXCC, valid locators for DXCC, locators with high activity from DXCC or middle locators of DXCC. It uses files cty.dat from K1EA and tucnakdw.
- The cross control couple callsign – locator.
- Import of VHF database by DL8EBW
- The basic statistics – number of worked DXCC and WWL
- There is a color world map with worked QSO in graphic mode.
Website: tucnak.nagano.cz
Support:
Developer: Ladislav Vaiz
License: GNU General Public License v2.0

Tucnak is written in C. Learn C with our recommended free books and free tutorials.
Related Software
| Ham Radio | |
|---|---|
| WSJT-X | Basic amateur radio communication using very weak signals |
| Tucnak | Ham radio VHF/HF contest logbook |
| QLog | Amateur radio logbook |
| Dire Wolf | AX.25 packet modem/TNC and APRS encoder/decoder |
| Qtel | Qt EchoLink client |
| wfview | Controls icom ham radios |
| Flrig | Transceiver control program |
| Fldigi | Modem program for most of the digital modes |
| TrustedQSL | Tools for digitally signing Amateur Radio QSO records |
| klog | General purpose ham radio DX logging support |
| CQRLOG | Advanced ham radio logger |
| Xastir | X11 graphical APRS client |
| ADIF Multitool | Validate, modify and convert ham radio log files |
| AetherSDR | Linux-native client for FlexRadio Systems transceivers |
| Xlog | Logging program for amateur radio operators |
| PyQSO | Contact logging tool for amateur radio operators |
| Not1MM | Ham radio contest logger |
| JS8Call | Software using the JS8 digital mode |
| FreeDV | Desktop application for amateur radio operators |
| CHIRP | GUI tool for programming ham radios |
Read our verdict in the software roundup.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

