Visual-CW (or slow-CW or QRSS) has become a rather popular mode on LF. It has 2 very important advantages : 1. signal far beyond the audible 'triggerlevel' are detectable, allwing QSO's that would ha
Since visual-CW is derived from 'normal' CW we use the same morse code that was optimized for reception by ear. Nice concepts on the FSK. An interesting historical note is that Morse code was origin
I dont find QSOs that last 30minutes a problem. In any case I have listened to 'fast' rubber stamp QSOs that last that long!. The relaxed atmosphere of waiting for the reply to emerge on slow CW is t