Radiant Energy Display and Analysis Software Package (REDAP) is a computer program for processing antenna-radiation- pattern data that have been preprocessed by a data-collection program and stored in a spherical-coordinate format. REDAP is designed specifically for application to data generated in testing of antennas in an anechoic chamber at Johnson Space Center; parts of REDAP may be reusable for processing antennatest data collected elsewhere. REDAP provides a graphical user interface (GUI) and executes mathematical and plotting routines on a personal computer. The routines include statistical calculations (e.g., maximum, minimum, 3-dB-falloff points, and percent coverage); addition and subtraction of offsets; multiplication and division by scaling factors; and computation of circular-polarization characteristics from linear-polarization measurement data.

A Sample Polar Plot illustrates one of the formats that can be generated from REDAP.

This work was done by Jim Siekierski of Johnson Space Center and Ash Henson of Lockheed Martin Corp.

This Brief includes a Technical Support Package (TSP).

Displaying and Analyzing Antenna Radiation Patterns (reference MSC-23210-1) is currently available for download from the TSP library.

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