During the rearming of the Wehrmacht the first top secret rearmament measures were carried out in spring 1933. These measures included the formation of new units and the establishment of a second signal company in existing units, the recruiting of officer cadets resulting in an eightfold increase over that on 1 April 1933, the reinforcing of the officer and NCO cadre by former signals soldiers, and their training through various courses.Hans-Georg Kampe: Das militärische Fernmeldewesen in Deutschland, retrieved 20 May 2012 From 1934, from the old signal units the required cadre of officers and soldiers was drawn for the establishment of new formations, the divisions of the Wehrmacht each receiving a signal unit. Meanwhile, the Signal Corps steadily expanded its field of expertise; they now had light, medium and heavy telephone troops, telephone exchange and telephone operating troops, telegraph construction troops, light and heavy radio troops, miniature radio troops, two-way radio troops, radio surveillance troops, patrol radio troops, cypher and evaluation troops and battery charging troops.
