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R&S FSH
Using the R&S FSH in receiver mode
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Setting the detector
The following detectors are available in the receiver mode:
Peak
The peak detector displays the highest level during the set measurement
time.
Average
The average detector displays the linear average of the measurement signal
within the selected measurement time.
RMS
The RMS detector takes the rms value of the measurement signal during the
set measurement time.
Quasi-peak
The quasi-peak detector evaluates the measurement signal according to the
evaluation curves defined in the CISPR16 standard. The R&S FSH uses three
different evaluation curves that are coupled to the set bandwidth. For
frequencies below 150 kHz (CISPR band A), the R&S FSH sets the 200 Hz
bandwidth. The evaluation for band B (to be used from 150 kHz to 30 MHz) is
coupled to the 9 kHz bandwidth.
The quasi-peak evaluation for the C/D band (30 MHz to 1000 MHz) is coupled
to the 120 kHz bandwidth.
The detector is selected either in the main menu of the receiver mode or by using the TRACE key.
Press the DETECTOR softkey in the main menu of
the receiver mode
or
Press the TRACE key and then the DETECTOR
softkey.
The menu for selecting the detector opens.
Using the rotary knob or the cursor keys, select the desired detector.
Confirm your selection with the ENTER key or by pressing the DETECTOR softkey again.
Setting the measurement time
The measurement time is the time during which the R&S FSH observes the signal and combines it with
the result displayed at the end of the measurement time as a function of the set detector.
The R&S FSH accepts measurement times between 1 ms and 100 s.
Press the MEAS TIME softkey in the receiver main menu or in the trace menu.
Change the measurement time in the entry box with the rotary knob or the cursor keys, or enter a
new value via the numeric keypad.
Confirm the entry with the ENTER key.
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