Automatically Programmed 1 to 12 Gc Interference Measuring Set

As more and more electronic equipment "goes on the air", the requirements for r-f interference measurements become more extensive and technical complex, and taking these measurements becomes more time consuming. The repetitive setting and resetting of controls, recording of readings, and transcribing of these readings results in extreme operator fatigue. This, in turn, means a large amount of errors. If the errors are caught, information readings must be retaken; if the errors slip by, the complete spectrum signature may have a low confidence of acceptability. The United states Army Electronics Laboratories have considered these problems and, to overcome them, are developing automatically programmed interference measuring sets. This paper presents an overall description of the first of these; the AN/URM-100(XE-1), which covers the 1 to 12 gigacycle (gc) range with programmed automatic frequency scanning, self-calibration, data printout, and X-Y plotting.