WW2 German Luftwaffe Aircraft FBG2 – RADIO TUNING SWTICH – FuG125 – Me262 Fw190

You are bidding on a VERY RARE example of an WW2 German Luftwaffe FBG 2 (Fernbedienungsgerät 2), Ln. 28862; mit Sockel FBGF 2, Ln.28872! Dating around 1944, this Radio Tuning Swith was used in conjunction with the FuG125 “Hermine” Radio System! These navigation and radio direction finding systems were used on many late-war fighters such as the Me110, Fw190 A8/R11 (R12), Fw190 D9/R11 (R12), Ta152, and Me262 A-1a/U2! 

The FBG2 acted as a remote control radio tuning unit for the pilot, and was most notably used with FuG125 “Hermine” Radio Direction System. It allowed the pilot to switch to various frequencies, and was usually located on the cockpit floor or side console. Also used in conjunction with the FuG120a “Bernhardine” and similar systems.

Originally developed in 1942 due to problems the design was suspended. When in 1944 the existing radio navigation systems were either being jammed or under physical attack the design was revisited. It consisted of a rotating radio beacon transmitting at 30 -33 MHz. The signal consisted of a tone and a robot voice using FM. The robot voice was encoded onto an optical disk. The voice spoke a number between 1 and 35, corresponding to 10 degrees of angle from the beacon. The pilot listened to the signal, when the tone disappeared the next number corresponded to the angle from the beacon. It was expected that this would give an angular resolution of about 5 degrees but when tested it was found that some pilots could estimate to within 3 degrees. The receiver was a modified EBL 3 which had its bandwidth increased and fitted with an FM interface board. This board also connected to the pilots audio via the Fug16 to send the audio information to the pilot. In single-seater aircraft the radio fit was numbered FuG 125. The beacon identifier was transmitted instead of the number 0. This allowed a pilot to select a particular beacon. Between 10 -20 beacons were commissioned by May 1945. 30 channels were available with 2 more being reserved for airfield ILS. Beacons were usually placed 20 km from a runway, The pilot would over fly the beacon and then circle until he acquired the ILS landing beam on the FuBL 2 equipment. Ground units were BS 15 navigation radio beacons constructed from rebuilt FuG 15 sets.

Made of aluminum, bakelite, and steel, this FBG 2 and FBGF 2 Mounting Plate are in EXCELLENT used condition! Though they do feature some slight marks and scratches due to the age, they retain 95% of the original finish! The data label is 99% complete, and the knob functions perfectly. Appears to be 100% mechanically functional, but I have not tested it electrically. I have shown its location in the Me262, however this was intended for use in a multitude of late-war aircraft, such as the Do335 and Ar234. Would make an EXCELLENT addition to any collection, display, or restoration project!