Rohde & Schwarz FSH4 - Analyzing Measurement Results; Working with Traces

R&S FSH Distance-to-Fault Mode (R&S FSH-K41)
Analyzing Measurement Results
Operating Manual 1173.6275.12 - 30 229
7.3 Analyzing Measurement Results
7.3.1 Working with Traces
For more information see "Selecting the Sweep Type
The sweep type defines the way how the R&S FSH captures and processes the
data.
► Press the SETUP key.
► Press the "User Preferences" softkey.
► Select the "Sweep / FFT" menu item.
The R&S FSH opens a dropdown menu to select the sweep type.
Which sweep type is appropriate for the current measurement depends on the
span, RBW, VBW and sweep time settings.
- Auto
The R&S FSH automatically selects the fastest sweep type for the current
measurement configuration.
- Always Sweep
The R&S FSH uses the local oscillator to provide the spectrum quasi analog
from the start to the stop frequency.
- Prefer FFT
The R&S FSH samples the signal levels over time on a defined frequency
value and transforms it to the spectrum by fast Fourier transformation (FFT).
Note that an FFT sweep is not possible under the following circumstances:
● For measurements in the time domain (zero span).
● For TDMA Power, Spectrum Emission Mask and Spurious Emission
measurements.
● For measurements with a gated trigger.
● If the frequency span is smaller than the resolution bandwidth (RBW).
● If the the resolution bandwidth (RBW) is greater than 300 kHz.
Working with Traces" on page 109.