Mike Dennison wrote:
[...]
> The first is to know for certain that the station you are listening 
> to cannot be someone else (or something else). In this case a single 
> letter (either pre-arranged or part of the callsign) should be 
> adequate.

Yes, of course. It important to remember that 9kHz is still "the lonely
dreamer's band". Pile-ups and other "traffic jams" are still quite rare
(!) so the risk of misreading a callsign is minimal. There are about
three million licenced radio amateurs on the regulated ham bands. On
9kHz there is currently one (Stefan), and he has the privilege to choose
his own callsign, operating procedures etc. without breaking any law.

73
Johan SM6LKM