Weak signal keyboard-to-keyboard messaging for ham radio
JS8Call started as an experiment in combining the robustness of FT8 (a weak-signal mode by K1JT) with a messaging and network protocol layer for weak signal communication.
The open source software is designed for connecting amateur radio operators who are operating under weak signal conditions and offers real-time keyboard-to-keyboard messaging, stored (inbox) messaging, message relay, and automatic station announcements.
JS8Call is heavily inspired by WSJT-X, Fldigi, and FSQCall and would not exist without the hard w…
Weak signal keyboard-to-keyboard messaging for ham radio
JS8Call started as an experiment in combining the robustness of FT8 (a weak-signal mode by K1JT) with a messaging and network protocol layer for weak signal communication.
The open source software is designed for connecting amateur radio operators who are operating under weak signal conditions and offers real-time keyboard-to-keyboard messaging, stored (inbox) messaging, message relay, and automatic station announcements.
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.
Features
- Weak signal communication down to -24dB SNR
- Keyboard-to-keyboard messaging and QSOs
- Store and forward messaging via relays
- Automatic station spotting via APRS-IS
- Heartbeat and CQ monitoring
- Multi-speed modes: Slow, Normal, Fast, Turbo
- Cross-platform: Windows, macOS, Linux
- Free and open source (GPLv3)
Resources
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Source:
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Official Repository: js8call/js8call
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Development: js8call-improved/js8call-improved
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Downloads:
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Groups.io: JS8Call Discussion Group
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Documentation: JS8Call Guide
About
JS8Call was originally developed by Jordan Sherer, KN4CRD and now includes a community of developers, including W6BAZ, K0OG, AC9KH and more. The software has received multiple awards including the 2020 Hamvention Technical Achievement Award and the 2021 Amateur Radio Software Award.