stations anyway? The one I heard recently was at about 5.165MHz
USB, in the evening hours, with a female voice reciting 5-digit
groups in German. The voice was voice samples played back by
computer. "Zero" was used instead of "Null" (0) and a word like
"Fuelle" was used instead of "Fuenf" (5). Transmissions were
bracketed by "Achtung" (Attention) and "Ende" (End). Each 5-digit
group was recited twice making it almost foolproof to copy even
if the reception was bad. Not a one-time occurrence either; I
heard it a year ago too!
So. It's an encrypted transmission, it's meant to be received by
low-tech means, it's one-way, it's quite likely to more than one
recipient, it's in GERMAN, and it's transmitted in/to North America.
What on earth is it?