überarbeitet am 30.12.2012
The Swiss Air Force planned an order of fighter aircrafts Messerschmitt Bf 109 E in Germany. Because they were not yet available due to Germany's entry in World War II, Switzerland did acquire 10 aircrafts of the variant Bf 109 D which were already available and were delivered in 1939, completely equipped with the Telefunken on-board wireless station FuG VII a. As the receiver which made originally part of the equipment showed no sufficient performance, it was replaced by the superior receiver Telefunken E 406 F (which was a part of FG IV equipment).
Regarding the planned procurement of Messerschmitt Bf 109 E fighter aircraft,
ten airplanes of the already available variant Messerschmitt Bf 109 D were ordered
in 1938 and delivered to Switzerland in 1939. They were used as trainer aircraft.
The receiver Telefunken E 406 F comes with five valves NF 4, the superhet
receiver covers the 2500 - 3750 kHz shortwave range.
I would be very thankful for further information and images.
© 30.12.2012 Martin Bösch