JT65-HF Comfort 4.0 by DL4OCE

New additional Prefixes has been a problem for a long time. If you review the thread "Request New Prefix" in the Google JT65-HF forum you can read the old history. Many of us are Required by regulation to use a prefix.
My request has been standing for a number of years. I hope you will be able to address the Prefix problem.

John TI4/N0URE

I don't think this will fit the 13 symbols limit of JT65. But could you please contact the JT65 Google group?

In case it's possible by technical meanings, I'd put it on the list.

It's simply not possible with the JT65A protocol.