This diagram represents organisational withdrawl of Luftwaffe signals units in the Western Mediterranean, July 1943 to May 1945. After the fall of Africa, Luftwaffe signals units retreated as the Allies gained ground. The retreat started after Tunisia was captured by the Allies in Tunisia in May 1943, followed by Sicily in August 1943. The Luftwaffe removed critical DF, radar and intercept out-station equipment first from Tunisia to Frascati, and then from Frascati to Padua, as the war progressed. Frascati was the regional headquarters of Albert Kesselring before being moved to Padua and then Canazei.
Own work
This file was derived from: Luftwaffe HF DF network of W-Leit 2, in the beginning of 1943.svg
Derived from;

https://docs.google.com/file/d/0B7sNVKDp-yiJdGRmNmctUzdZS1UInformation from:

Scope creep
Goran tek-en, following request by Scope creep