Someone has suggested a qso would be valid if it took 24 hours. I think
this is rediculous, because it is not likely that any operator would
continuously try for this period of time. So for one signal to be copied at
a particular time and a reply that came 24 hours later would not be valid as
far as I am concerned.
I would agree that a qso on slow morse could take a few hours during a
session and that would be acceptable but to call back next day with a reply
is stupid and not credible.
The next suggestion by some will be a week long qso!!!!!!!!!!!!!!!! This is
hardly state of the art communications and puts the clock back, dont suppose
it ever took anyone 24 hours plus to have a two way contact even druing the
pioneering days!!!!!!!!
Not sure about smoke signals but I do not think so, they were probably
faster than slow morse.

G3KEV