MSI MS-6852 Bedienungsanleitung PDF herunterladen (Seite 16)

Report No.: 048L022EI

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5.5. Test Procedure

The EUT and its simulators are placed on a turn table which is 1.5 meters above ground. The turn table

can rotate 360 degrees to determine the position of the maximum emission level. The EUT was

positioned such that the distance from antenna to the EUT was 3 meters.The antenna can move up and

down between 1 meter and 4 meters to find out the maximum emission level.

Broadband antenna (calibrated bi-log and horn antenna) are used as a receiving antenna.

Both horizontal and vertical polarization of the antenna are set on measurement. And a high frequency

preamlifier were used increase the sensitivity of the measuring. In order to find the maximum emission,

all of the interface cables must be manipulated according to ETSI EN 300 328:V1.4.1 (2003-04) on

radiated measurement.

The additional notch filter below 1GHz was used to measure the level of harmonics radiated emission

during field dtrength of harmonics measurement. The bandwidth setting on the field strength meter (R

& S Spectrum Analyzer FSP40 )is 100 kHz. The frequency range from 30MHz to 12.75GHz is

checked.

5.6. Uncertainty

The measurement uncertainty above 1G is defined as

3.9 dB

under 1G is defined as ± 3.8 dB

5.7. Test Specification

According to ETSI EN 300 328:V1.4.1 (2003-04)

5.8. Test Result

The emission from the EUT was below the specified limits. The worst-case emissions are shown in

section 8. The acceptance criterion was met and the EUT passed the test.

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MSI MS-6852 Bedienungsanleitung Seite 16