Hi!
In Fritz Trenkle "Die deutschen Funk-Navigations- und Funk-Führungsverfahren bis 1945"
is written that the main-beam of "Sonne" at Andenes (Trenkle named it "Sonne 20") was
in direction of 45 degrees. So the "northern-mast" should have been in direction of
315 degrees from the "center-mast" and the "southern-mast" in 135 degrees.
The PDF you have found belongs to a post-war-description of "Sonne 8" here in Northern-
Germany about 30 km from the place where I live. As it is written in the PDF it used
2,88 Lambda (I measured 2,68 Lambda). The frequency of Andenes was 269 kHz, so the
distance to each masts should have been round about 2985 m. That is after "my" formula.
But: Trenkle wrote about the antenna-base of Andenes of round about 4 Lambda, so it
could have been a mast-distance of up to 4,5 km to each mast! Unlucky!
By the way... Here in Germany the "main-masts" of "Sonne" were just large wooden poles.
The lines between the "main-masts" were on simple telegraph-poles. Today there is
nothing left, just a few parts of the metal-earthing-ribbons on/in the fields.
Good luck for your search.
Rolf