Releases: K5PTB/fldigi
Release list
fldigi 4.2.13 (TCI) — portable Windows + Linux
Unofficial build of the K5PTB fork of fldigi 4.2.13 with native TCI (Transceiver Control Interface) support — CAT rig control and full-duplex RX/TX audio over one WebSocket to an ExpertSDR / SunSDR / AetherSDR-class SDR server, with no hardware CAT port and no virtual audio cable. Everything else is stock fldigi 4.2.13.
Downloads
| Platform | File | How |
|---|---|---|
| Windows 11 (x64) | fldigi-4.2.13-tci-win64.zip |
Unzip anywhere, run fldigi.exe. No installer. |
| Linux (x86-64 / PC) | fldigi-4.2.13-tci-x86_64.AppImage |
chmod +x it and run. Portable — nothing to install. |
| Linux (ARM64 / Raspberry Pi) | fldigi-4.2.13-tci-aarch64.AppImage |
chmod +x it and run. For 64-bit Raspberry Pi OS (trixie) on a Pi 4 / Pi 5. |
| macOS (Intel & Apple Silicon) | build from source | See BUILDING.md. |
All three binaries are built by GitHub Actions from this tag and each ships a BUILD-INFO.txt naming the exact commit.
AppImage won't start? (FUSE) If a Linux AppImage errors with something about
libfuse.so.2, either install FUSE —sudo apt install libfuse2t64on Raspberry Pi OS / Debian trixie — or run it without installing anything:APPIMAGE_EXTRACT_AND_RUN=1 ./fldigi-4.2.13-tci-aarch64.AppImage.
Using TCI
Select it in Rig Control → TCI and Soundcard → Devices → TCI, then set the ws:// address and port (default 50001). On a multi-slice radio, pick which receiver fldigi drives under Rig Control → TCI → Rig.
Reporting issues — your help is appreciated
TCI support is new and under active testing. The intent is to contribute it upstream to fldigi once it has been sufficiently tested. If you hit anything, please open an issue on this repo — not the upstream fldigi project, which did not build these binaries.