Tower Technique for R-F Radiation Measurements

A 200-foot pneumatically operated, portable plastic tower has been constructed to permit measurement of radiated signals and also to permit the radiation of r-f signals for overall susceptibility measurements. The electronic package contained at the top of the tower is semiautomated and is controlled from a console on the ground. Cable losses have been eliminated by locating all r-f circuitry at the antennas on top of the tower. This system was designed for making MIL-STD-449 type measurements on operational radars. The system, its operation and the data analysis methods will be discussed.