Ronde & Schwarz 1304.0004K03, User Manual

Page: 253 / 1071

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
253 User Manual 1178.3370.02 ─ 11
Label Description
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
6.2.14.3 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 .................................................................253
● Detectors and Dwell Time ..................................................................................... 254
● Frequency Resolution - Sweep Points and Scaling .............................................. 257
● Controlling V-Networks (LISN) .............................................................................. 258
● Using Transducer Factors .....................................................................................259
● Initial Measurement - Peak Search .......................................................................259
● Final Measurement at the Marker Position ........................................................... 261
● Limit Checks ..........................................................................................................261
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 255)
Military (MIL Std)
●
10 Hz
●
100 Hz
●
1 kHz
●
10 kHz
●
100 kHz
●
1 MHz
If you select a CISPR or MIL filter type, the corresponding RBW that is closest to the
currently selected RBW value is used. In this case, the channel setup bar indicates
"RBW (CISPR)".
Measurements and Results