FuG 23
The FuG 23 was a simple direction finder of the Luftwaffe in World War II , which was installed in about every tenth Fieseler Fi 103 ("V1") cruise missile used . About 60 km from the target, the internal counter (“air log”) of the flying bomb activated the unwinding of the towed antenna at the rear and switched on the FuG 23. A motor-driven signal generator then sent a certain letter in Morse code . The course and impact location of the Fi 103 could thus be determined by cross bearing .
As a lost device, the DF transmitter had a very simple structure: it only consisted of a Wehrmacht "LS50" transmitter tube from Telefunken with a modified Meißner circuit connected as a triode . Switchable capacitors were used to set the frequency . With a transmission power of 25 watts, the range was over 250 km. In addition to the 30-volt on-board battery, two further batteries with 15 volts ( heating ) and 1000 volts ( anode voltage ) were installed in the Fi 103 to supply the transmitter and signal generator .
literature
- Device manual FZG 76 (Fi 103), part 2 "Log device" (PDF)
- Device manual FZG 76 (Fi 103), part 5 "Radio system" (PDF)
Web links
- HF radio propagation (PDF; 416 kB)