Datasheet

MODEL : MRG-5800V4V REPORT NO. : 10090203
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3.2.2.2 Open Field Test Site - description
The open field test site (OFTS) is designed to provide an environment in which repeatable tests of
radiated emissions can be carried out.
It consists of a flat elliptical area as shown in the diagram below.
The equipment under test and the antenna are placed at the foci of the ellipse.
The antenna height should be remotely adjustable from 1m to 4m. Measuring instrumentation
should be outside the ellipse at the position shown or in a room under the ground plane.
The whole or part of the site may be enclosed in an RF transparent building.
For precompliance testing a 3m test site with a fixed height antenna (at 1.5-2m height) and no
metallic ground plane may be used. This may be a clear area on a car park or a grass area but should
be away from large metallic structures.
3.2.3 Radiated Emission Limit
Class A Limits
Frequency Distance Field Strength
MHz Meter DB(uV/M)
30-230 3 50
230-1000 3 57
Remarks :
1. The tighter limit shall apply at the edge between two frequency bands.
2. Distance refers to the distance in meters between the measuring instrumentantenna and the
closed point of any part of the device or system.