Rohde & Schwarz FSV3000, Руководство пользователя

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Measurements and results
R&S
®
FSVA3000/ R&S
®
FSV3000
326 User Manual 1178.8520.02 ─ 08
Label Description
Y-value Marker y-value (level during initial measurement)
Final Test Detector used for final EMI test
Line name Line activated for limit check
Δ
Limit Delta between measured level and limit line (if active)
The value is colored to indicate the following states:
●
green : does not exceed limit
●
yellow : within margin
●
red : exceeds limit
Final Result Value measured during final EMI test using specified detector at marker frequency
5.13.3 EMI measurement basics
Some background knowledge on basic terms and principles used in EMI measure-
ments is provided here for a better understanding of the required configuration set-
tings.
● Resolution bandwidth and filter types ................................................................... 326
● Detectors and dwell time .......................................................................................327
● Frequency resolution - sweep points and scaling ................................................. 331
● Controlling V-Networks (LISN) .............................................................................. 332
● Using transducer factors ....................................................................................... 333
● Initial measurement - peak search ........................................................................333
● Final measurement at the marker position ............................................................334
● Limit checks .......................................................................................................... 335
5.13.3.1 Resolution bandwidth and filter types
EMI testing requires resolution filters with a 6 dB bandwidth. The EMI measurement
adds the following bandwidths, which comply to commercial and military standards, to
those already available with the base unit:
Commercial (CISPR, FFC etc.)
●
200 Hz
●
9 kHz
●
120 kHz
●
1 MHz (not with quasi-peak detector, see "Quasi-peak detector (CISPR filter only)"
on page 328)
Military (MIL Std)
●
10 Hz
●
100 Hz
●
1 kHz
●
10 kHz
●
100 kHz
Electromagnetic interference (EMI) measurement