I was calling CQ on slot 12. I received a connection request, it went through and we connected. Then we exchanged signal reports and they were excellent, they were a -04 and I was a +04. Then the other station sent a QSYU request. I don't know why, maybe he had some QRM, so I accepted. While I was accepting that they sent a link test. I had QSYed, that left my QSY acknowledgement in the out window. They never received it because of the link test that they were waiting for.
So a suggestion for the next update, if someone sends a QSY request, they can't send anything else until it is completed, maybe with a popup window that shows the QSY status as it proceeds. That would probably have been a good QSO, but it was lost because they stacked requests and it was lost in the QSYU. I have had several QSOs get lost in a QSY request that I accepted.
73s
KQ4QWH
Hi Steve. Thanks for your feedback. I would like to stress that <TL> is not the only method for which VarAC decides the QSY was successfully. Even if messages were stacked, the moment VarAC receives anything from the other side (even the first packet of a long transmission) it concludes that the QSY was successful and does not wait for the <TL>. the <TL> is there in case nothing is sent to to be on the safe side - the other side queues a <TL> but it is just a spare wheel and not the main player.
I do think though that your idea for a more clear indication for the QSY progress may make some sense especially to new users who does not know what to expect. I'll think about doing something in the lines of this.
73s
Irad