Please see the most recent updates in the "Where did the .com name go?" thread. Posts number 16 and 17.
Please see this thread for updates. Update Thread
SOH ADMINISTRATION

I know most of what I was involved with was from summer '43 on when Bomber Harris started the Rhur campaign onwards. 

Aders' book on page 43 shows a map 31 December '41 of Dunkel, Hellen, and combo zones. So it appears that there were these lighted zones in operation from Denmark to Holland. Actually on page 35 it states that in September '41 that the line became fully operational. He also states that Lichtenstein B/C was tested in the summer of '41, and the first use of AI with success was 30 Sept 1941 when Becker shot down a plane in his Do 215 B-5. So I think while the full line was not ready until Sept, various pieces were put into place well before that date.![]()