R&S FSH
Operation in Receiver Mode
1145.5973.12 2.23
E-11
Selecting the bandwidth:
The receiver mode provides the same bandwidths as in analyzer operation. In addition, the three
bandwidths 200 Hz, 9 kHz and 120 kHz are available for EMI measurements in accordance with
CISPR16.
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Press the BW key
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Using the rotary knob or cursor keys, change the
bandwidth and confirm with the ENTER key, or,
using the numeric keypad, manually enter
bandwidth and confirm by pressing the units key.
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For input of a CISPR bandwidth press the softkey
CISPR BW.
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Using the rotary knob or cursor keys, change the bandwidth and confirm with the ENTER key, or,
using the numeric keypad, manually enter bandwidth and confirm by pressing the units key.
According to CISPR16 the bandwidth is connected to the frequency. The R&S FSH allows to couple the
bandwidth to the set frequency automatically:
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Press the softkey AUTO CISPPR BW.
The R&S FSH uses the suitable bandwidth dependent on the set frequency.
Setting the detector:
The receiver mode of the R&S FSH offers a peak detector, average detector, RMS detector and quasi-
peak detector.
Set the detector either from the main menu of the receiver mode or by using the TRACE key.
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Press the DETECTOR softkey in the main menu of
the receiver mode, or press first the TRACE key and
then the DETECTOR softkey
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Using the rotary knob or cursor keys, select a
detector from the selection list.
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Press the ENTER softkey.
Setting the measurement time:
The measurement time is the amount of time during which the R&S FSH collects measured values and
compiles them into a display result for the selected detector.
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Press the MEAS TIME softkey in the main menu of the receiver mode, or press the SWEEP key.
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Using the rotary knob or cursor keys, adjust the measurement time, or, using the numeric keys, enter
a new measurement time and confirm with the unit.
Note:
If the quasi-peak detector is selected, the selected measurement time must be larger than
100 ms in order to ensure that fluctuating or pulse-like signals are measured correctly.
