Rik, ON7YD wrote:

O = 100% copy
M = less than 100% copy but sufficient for a QSO
T = signal copied but unsufficient for a QSO<

... some two years ago, after I just had improved my antenna system, I got
a "CH" report (old timers may recall, there used to be special Morse code
signs for special letters, for example "CH" equals to four dashes = "----")
from Peter, DF3LP in Kiel. He wanted to express at this time that he was
able to perfectly copy my signal and that my signal was better than just an
"O" (he could actually hear me). I don't know, however, if this is
something we should make standard, it might add to the confusion ...

Best 73

Geri, DK8KW (W1KW)