I did a couple of QSOs with rc7, both during Mock Contest (RU mode) and as well as a number of standard QSOs. Here are my observations:
(1) The new FT4 protocol works fine. MUCH better than the old one!!! No unreasonable loops anymore. When there is a visible trace, now usually signal is being decoded. Saw stations down to -21 dB and worked ones with -14 or so, which was nearly impossible with rc5. Thanks a lot to the dev team! Great improvement!!! (2) During first QSOs in RU mode I got each time 'invalid QSO Data' when trying to log (Exch sent field missing). Annoying: Due to the error message I could not react when the other station didn't get my RR73. Lost two QSOs due to that. Then found out, that 'invalid QSO Data' error is ALWAYS there when using Tab 2. With Tab 1 is seemed to work better. Either correct the misbehavior of Tab 2 (preferred), or let WSJT-X automatically switch to Tab 1 when 'special operating activity' is selected. (3) I like to see one change of Auto Sec (not only when in RU mode): When the other station didn't get my RR73 message, let my reply automatically be sent again (at least one more time). Sometimes when trying to send RR73 again WSJT-X sent a 'CQ RU' using the next serial number. Btw. It's the same with FT8. (4) 64-bit version of rc7 worked/works stable on my computer (Win 10 Pro, 64-bit). Remaining issues: PWR slider still reacts somewhat slower than in earlier 32-bit versions + the well-known 100% audio bug. 73 de Uwe, DG2YCB
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