It occurs to me that it could be as simple to use as one of the phone instant messenger apps and so, with most of the work done by claude, I created JttyChat that you see on the right here.
Very simple. Choose Settings under File and configure audio to and from your transceiver and the hamlib configuration to control transmit.
There's a Frequency menu with the list of suggested upper sideband frequencies taken from WSJT-X.
We've been chatting in the middle of the day between Melbourne and Sydney without any trouble. I've also had reports from Michael VK2TMC.
The Linux app is packaged up as an AppImage. You download it, uncompress, set properties to make it executable, and it should just work. Because I'm using QT6 the AppImage file is rather large as it bundles all the dependencies including hamlib.
Download here.

5 comments:
Amazing. Could this be adapted to work with Mac OS as client?
I have a macOS version running but needs more tweaking before release.
Hello Peter,
App looks nice.
Started it under Ubuntu 26.04.1
I go to settings, putting same settings as in WSJTX 3.2.0 which works fine in JTTY mode and have made contact.
When I press connect I get the message: Connected, but could not read frequency: Invalid parameter.
I go to Frequency Tab and select a Band/Freq.
Then on the Frequency window that opens I read Set frequency failed: Feature not implemented.
I thought of letting you know.
My mail constantine170@gmail.com
Here from Zero Retries! I'm excited to try out the new mode, but due to current necessity all my digital mode work is done from an Android phone. What steps would be required to port this to an APK?
A version for mobile phones would be great. I don't have much experience with Android development. Part of the code is in Fortran compiled in to a library. I'm sure it's possible - but I'm not the right person.
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