Advantech PPC-V106 Manuel d'utilisateur Page 13

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Compliance Certification Services Inc.
Report No.: 40614203-D Date of Issue: July 15, 2004
Page 13 Rev. 00
Procedure of Final Test
EUT and support equipment were set up on the test bench as per step 10 of the preliminary
test.
A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest
emissions. Emission frequency and amplitude were recorded into a computer in which
correction factors were used to calculate the emission level and compare reading to the
applicable limit. If EUT emission level was less –2dB to the AV. limit in Q.P. mode, then
the emission signal was re-checked using an AV. detector.
The test data of the worst-case condition(s) was recorded.
Data Sample:
Freq.
(MHz)
Q.P.
Raw
(dBuV)
Average
Raw
(dBuV)
Q.P.
Limit
(dBuV)
Average
Limit
(dBuV)
Q.P.
Margin
(dB)
Average
Margin
(dB)
Note
x.xx 43.95 --- 56.00 46.00 -12.05 --- L1
Freq. = Emission frequency in MHz
Raw dBuV = Uncorrected Analyzer/Receiver reading + Insertion loss of LISN, if it > 0.5 dB
Limit dBuV = Limit stated in standard
Margin dB = Reading in reference to limit
Note = Current carrying line of reading
“---“ = The emission level complied with the Average limits, with at least 2dB margin
limits, so no further recheck.
Calculation Formula
Margin (dB) = RAW (dBuV) – Limit (dBuV)
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