May 1999 | NTIA Technical Report TR-99-366

Spectrum Measurements for an RF–Driven Lighting Device

Roger A. Dalke; Patricia J. Raush; Frank H. Sanders; Jeanne M. Ratzloff

Abstract: New lighting devices that emit radio frequencies are being developed for commercial use. Since such devices may interfere with communication systems that utilize the radio spectrum, it is essential that the emission characteristics be carefully analyzed. This report describes the spectral emission characteristics of a radio frequency (nominally 2.5 MHz) driven lighting device that is under development for commercial use in the U.S. A combination of near-field measurement techniques and a theoretical model were used to determine emitted field levels. This report presents the results of the measurements and details measurement and analysis methods used to determine the emissions spectrum. The results presented include the theoretical model of the radio frequency source that can be used to predict spectral emissions of arrays of such lighting devices.

Keywords: compact radio spectrum measurement system (CRSMS); data acquisition (DA); RF lighting device; spectral emissions; RF interference

For technical information concerning this report, contact:

Frank H. Sanders
Institute for Telecommunication Sciences
(303) 497-7600

To request a reprint of this report, contact:

Lilli Segre, Publications Officer
Institute for Telecommunication Sciences
(303) 497-3572

Disclaimer: Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.

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