Aircraft Antenna, AS-114, for Countermeasure Radar AN/APT-4, WWII B-29, B-24
This antenna was used in the Radar Set AN/APT-4 for countermeasure tactics. Mounted on the fuselage of a B-24 or B-29 bomber, perhaps others, (see photo of the B-29 Superfortress Enola Gay from its restoration project, showing the location of this antenna), it was used as a high power jamming transmitter of sufficient power to screen a large bomber within two miles of enemy radar systems operating within its frequency band of 350-800 mc. It was originally designed for use against German radar systems such as Rhubarb, Liechtenstein, and Wurzburgs. Production started in 1944. (see description of this system and its components in the photo gallery).