User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
253User Manual 1178.3370.02 ─ 09
● Initial Measurement - Peak Search.......................................................................259
● Final Measurement at the Marker Position........................................................... 260
● Limit Checks..........................................................................................................261
Resolution Bandwidth and Filter Types
EMI testing requires resolution filters with a 6 dB bandwidth. The R&S FPL1000 EMI
measurement adds the following bandwidths that 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 Quasipeak detector, see "Quasipeak detector (CISPR filter only)"
on page 255)
Military (MIL Std)
●
10 Hz
●
100 Hz
●
1 kHz
●
10 kHz
●
100 kHz
●
1 MHz
For the Quasipeak, CISPR Average, or RMS Average detector, the bandwidth is fixed
depending on the frequency. For more information see "Detectors and Dwell Time"
on page 253.
Detectors and Dwell Time
The EMI measurement adds new detectors to those already available with the base
unit. The additional detectors are especially designed for and required by EMI applica-
tions.
The additional detectors are available only if the EMI (R&S FPL1-K54) measurement
option is installed and the filter type "CISPR" or "MIL" is selected (see "Resolution
Bandwidth and Filter Types" on page 253). The additional detectors can be selected for
the final test in the EMI measurement, or as trace detectors in zero span measure-
ments. For the initial peak search in the EMI measurement, these detectors are not
available.
The detector to be used for the initial peak search is configured in the trace settings
(see Chapter 7.10.1.2, "Trace Settings", on page 393), while the detector for the final
test is configured in the EMI marker settings, see "EMI Marker Configuration"
on page 261.
Measurements and Results