I have always thinked that this is a serious limittion for the future, do you think VARA modem could be modified by the author to allow a different behaviour?
to allow -21DB performance and CRC, in a reasonable timeframe you can squeez only certain amount of letters. if CQ calls will have free text in it, a CQ call will take a longer period of time. I think it is long enough as is.
That would be a great use for the Broadcast function
No. VARA CQFRAME allows only a callsign and nothing more.