A free, open-source, multi-platform application for sending files and messages, using the codec2 HF modems
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experiment with bigger RX audio buffer
Receiving data seems to be affected by the audio buffer length.
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codec2 | FreeDATA

My attempt to create a free and opensource TNC with a GUI for codec2 to send data over HF channels. The TNC itself will be completely controllable via network.

Under development

The project is still a prototype and not usable at this time.

Installation Ubuntu

wget https://raw.githubusercontent.com/DJ2LS/codec2-FreeDATA/main/tools/install-codec2-FreeDATA.sh
chmod +x install-codec2-FreeDATA.sh
./install-codec2-FreeDATA.sh
sudo apt install npm
cd gui
npm i
sudo apt install python3
pip3 install psutil

GUI Preview

alt text

TNC Preview

alt text

Credits

David Rowe and the FreeDV team for developing the modem and libraries FreeDV Codec 2 : https://github.com/drowe67/codec2