ETS-Lindgren 5411 GTEM! Test Cell - Manual (Page 89)

Radiated Emissions Test Performance of GTEM!
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 The characteristics of the GTEM! allow operation in a corporate location with
a rather high electromagnetic ambient environment, rather than a remote site
like an OATS. This allows increased efficiency in travel time and possibly
external test costs can be avoided. This makes the GTEM! ideal for EMC
engineering development work.
 The GTEM! will have future applicability as a qualification facility for new
products. The amount of data collected to date has shown that the
differences in GTEM! data and OATS data are not statistically different.
Additional statistical data is probably needed to establish a larger database,
but it seems that this will be possible in the not too distant future.
Acknowledgements
The GTEM! was developed by Asea Brown Boveri of Baden, Switzerland. The
technical content of this paper was prepared for presentation at the
1991 IEEE EMC Symposium.
References
ANSI 63.4/D11.4, Methods of Measurement of Radio-Noise Emissions from
Low-Voltage Electrical and Electronic Equipment in the Range of 9 kHz to
40 GHz.
D. Hansen, P. Wilson, D. Koenigstein and H. Schaer, “A Broadband Alternative
EMC Test Chamber Based on a TEM Cell Anechoic-Chamber Hybrid Approach”,
Proceedings of the 1989 International Symposium on Electromagnetic
Compatibility; Nagoya, Japan, September 8-10, 19089, p. 133-137.
J. Osburn and G. Watkins, “New Test Set-Up Challenges Indoor, Outdoor
Options”, EMC Technology, V.9, No.3, May/June 1990, p. 37-39.
J. Osburn, “New Test Cell Offers Both Susceptibility and Radiated Emissions
Capabilities,” RF Design, August 1980, p. 39-47.
Federal Communications Commission GEN Docket No. 89-44, FUTHER
NOTICE OF PROPSED RULE MAKING, January 2, 1991.
ANSI C63.5-1988, American National Standard for Electromagnetic
Compatibility—Radiated Emission Measurement sin Electromagnetic
interference (EMI) Control—Calibration of Antennas.
William S. Peters and George W. Summers, Statistical Analysis for Business
Decisions, Prentice-Hall, Inc., Englewood Cliffs, NJ. 1968, pp 377-385.