FileCart

JS8Call 2.3.1

Software using the JS8 Digital Mode providing weak signal keyboard to keyboard messaging to Amateur Radio Operators

filecart Linux Updated Oct 13, 2026
Download 137.95 MB
15downloads
0this week
FreeFreeware
0reviews

Screenshots

JS8Call 2.3.1 screenshot

About JS8Call

JS8Call is an experiment to test the feasibility of a digital mode with the robustness of FT8,
combined with a messaging and network protocol layer for weak signal communication on HF, using
a keyboard messaging style interface.

It is not designed for any specific purpose other than connecting amateur radio operators who
are operating under weak signal conditions. JS8Call is heavily inspired by WSJT-X, Fldigi, and
FSQCall and would not exist without the hard work and dedication of the many developers in the
amateur radio community.

License: GPL-3.0-or-later
Release info Update on Jun 28, 2025
Release notes JS8Call Version 2.3.1 Release Notes

Release Date: June 27, 2025

This is a maintenance and bugfix release focused on stability and functional correctness, particularly in messaging and PTT handling.

---

Bug Fixes & Improvements
o Message Window Stability:
Fixed a signal/slot connection issue in the message window that could lead to inconsistent or missing message updates during operation.
*\[Commit: 6b396e98]*
o PTT Test Behavior:
The Push-To-Talk (PTT) test now correctly respects the user's current audio device settings, ensuring accurate hardware behavior when testing transmit capabilities.
*\[Commit: b203ef39]*
o Reference Safety in Messaging System:
Resolved multiple instances of dangling references by replacing them with value-based delivery callbacks in the group messaging subsystem, improving memory safety and execution consistency.
*\[Commits: 0598bfed, 15c32e67, 53c7be34, a2566706, 86af85ef, df118ea7]*
Listing dataFlathub

Reviews

No reviews yet. Be the first to review JS8Call.

Used JS8Call? Tell other visitors what you thought.

Log in to write a review

Other products by this publisher

Most viewed Linux Multimedia

  1. 1 Rune 2.0.0-alpha.14 The player that blends classic design with modern technology 59
  2. 2 Bitwig Studio 6.1.4 Modern music production and performance 58
  3. 3 CloudMusicPlayer 1.0.4 Linux music player for NetEase Cloud Music 58
  4. 4 Feishin 1.17.0 Jellyfin, Navidrome, and OpenSubsonic Compatible Music Player 57
  5. 5 wiliwili 1.6.0 Watch videos from Bilibili 56
  6. 6 Audiveris 5.11.0 Optical Music Recognition (OMR) Application 54
  7. 7 Melodeon 0.6.0 Simple QWebEngine wrapper for MaterialSkin UI on Lyrion Music Server 52
  8. 8 GPU Screen Recorder 6.1.6 A shadowplay-like screen recorder for Linux. The fastest screen recorder for Linux 51
  9. 9 QPrompt 2.0.3 Personal teleprompter software for all video creators 49
  10. 10 GNOME Network Displays 0.99.0 Screencasting for GNOME 49

Most downloaded Linux Multimedia

  1. 1 CloudMusicPlayer 1.0.4 Linux music player for NetEase Cloud Music 25
  2. 2 Finamp 1.0.2 Open source Jellyfin music player 22
  3. 3 Kazumi 2.4.2 Watch Animes online with danmaku support 19
  4. 4 Feishin 1.17.0 Jellyfin, Navidrome, and OpenSubsonic Compatible Music Player 18
  5. 5 Musicfox 5.1.0 Terminal music player for Netease Cloud Music 16
  6. 6 wiliwili 1.6.0 Watch videos from Bilibili 15
  7. 7 JS8Call 2.3.1 Software using the JS8 Digital Mode providing weak signal keyboard to keyboard messaging to Amateur Radio Operators 15
  8. 8 Fladder 0.11.1 A cross-platform Jellyfin client 14
  9. 9 Rune 2.0.0-alpha.14 The player that blends classic design with modern technology 13
  10. 10 FFaudioConverter 0.32.0 Batch audio converter and effects processor 13