Advantech IPC-5120 Uživatelský manuál stáhnout pdf (Strana 13)

Compliance Certification Services Inc.

Report No.: 60707201-F Refer No.: 60321204 Date of Issue: July 7, 2006

Page 13 Rev. 00

Procedure of Final Test

l EUT and support equipment were set up on the turntable as per step 8 of the preliminary

test.

l The Analyzer / Receiver scanned from 30MHz to 1000MHz. Emissions were scanned and

measured rotating the EUT to 360 degrees, varying cable placement and positioning the

antenna 1 to 4 meters above the ground plane, in both the vertical and the horizontal

polarization, to maximize the emission reading level.

l Recorded at least the six highest emissions. Emission frequency, amplitude, antenna

position, polarization and turntable position were recorded into a computer in which

correction factors were used to calculate the emission level and compare reading to the

applicable limit and only Q.P. reading is presented.

l The test data of the worst case condition(s) was recorded.

Data Sample:

Freq.

MHz

Amptd

dBuV/m

Margin

Limit

dBuV/m

Reading

dBuV

Factor

dB/m

Reading

Type

(P/Q/A)

Pol.

(H/V)

x.xx 26.2 -13.8 40 14 12.2 Q H

Freq. = Emission frequency in MHz

Read Level = Uncorrected Analyzer/Receiver reading

Factor = Antenna Factor + Cable Loss + Attenuator (3/6/10dB) – Amplifier Gain

Level = Read Level + Factor

Limit = Limit stated in standard

Over Limit = Reading in reference to limit

P = Peak Reading

Q = Quasi-peak Reading

A = Average Reading

H = Antenna Polarization: Horizontal

V = Antenna Polarization: Vertical

Calculation Formula

Over Limit (dB) = Level (dBuV/m) – Limit (dBuV/m)

1 2 ... 8 9 10 11 12 13 14 15 16 17

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