Assessing the Effects of an OATS Shelter; Is ANSI C63.7 Enough?

Published

August 1, 2000

Author(s)

Robert T. Johnk, David R. Novotny, Claude Weil, H. W. Medley

Abstract

This paper summarizes a recent measurement effort by NIST researchers at an open-area test site (OATS), operated by a large information technology equipment manufacturer. The purpose of this effort was to assess the effects on emissions measurements of a fiberglass dielectric shelter that is used to protect and temperature stabilize information technology equipment undergoing emissions tests. NIST researchers and industry are seeking to answer questions about the impact of OATS shelters using an ultra wideband time-domain measurement system. The paper summarizes the instrumentation used, the measurement methodologies, and the data obtained. The results indicate that the fiberglass shelter can have a significant impact at frequencies above 100 MHz, a result which should be of interest to the emissions testing community.

Proceedings Title

Proc., 2000 Electromagnetic Compatibility (EMC) Symposium

Conference Dates

August 21-25, 2000

Conference Location

Washington, DC, USA

Pub Type

Conferences

Keywords

fiberglass, high frequency, OATS shelter, open-area test site, site attenuation, TEM horn, time-domain, transmission

Citation

Johnk, R. , Novotny, D. , Weil, C. and Medley, H. (2000), Assessing the Effects of an OATS Shelter; Is ANSI C63.7 Enough?, Proc., 2000 Electromagnetic Compatibility (EMC) Symposium, Washington, DC, USA (Accessed October 10, 2025)