Bezeichnung: Bediengerät BG 25a Anforderungszeichen: Ln.28810 Baumuster: BG 25a Hersteller: bou = Telefunken Gesellschaft für drahtlose Telegraphie mbH, Berlin / Erfurt Baujahr: ca. 1944 Eingebaut in: Flugzeugen mit FuG 25a, z.B. Focke-Wulf FW 190, T
ORIGINAL, COMPLETE WWII German Luftwaffe BG25a (Bediengerät 25a) Ln. 28810.
The BG25a connected directly to the SE25 radio Sending Unit. Both were part of the main FuG25a Radio System, which allowed for air-to-air communication, as well as air-to-ground. Working like a modern IFF (Identification Friend or Foe), it was equipped in most late-war German aircraft. Working on the same frequency as the main radios, it sent a signal allowing radar stations and other aircraft to differentiate between friendly and enemy aircraft/formations.
This system was used on many late-war Fighters and bombers such as the Me109, Fw190, Me262, Me-163, He162 and other German aircraft.