FFT
R&S
®
RTM20xx
120User Manual 1317.4726.02 ─ 01
See also figure 8-1.
Remote command:
CALCulate:MATH<m>:FFT:TIME:RANGe on page 353
Position ← FFT-Setup
Defines the position of the time base extract in the Y(t)-window for which the FFT is
calculated. The value is indicated by "P" in the information bar above the FFT window.
Note: If the FFT time base extract is selected ("W"/"P" is highlighted), the position can
be adjusted using the horizontal POSITION rotary knob.
See also figure 8-1.
Remote command:
CALCulate:MATH<m>:FFT:TIME:POSition on page 354
Points ← FFT-Setup
Defines how many samples are used for FFT calculation
The value is changed in 2
n
steps from 2048 (2
11
) to 65536 (2
16
).
Remote command:
CALCulate:MATH<m>:FFT:BANDwidth[:RESolution]:RATio on page 351
Y(t)-Setup
Defines the settings for the signal vs. time window.
Y-Scale ← Y(t)-Setup
Changes the vertical scaling of the Y(t)-window (channel scaling).
Note: If the Y(t)-window is selected (indicated by a white border), the Y-Scale can be
adjusted using the vertical SCALE rotary knob.
See "SCALE, Y-Scale" on page 29.
Remote command:
CHANnel<m>:SCALe on page 289
Y-Position ← Y(t)-Setup
Defines the vertical position of the time axis in the Y(t)-window, in divisions.
Note: If the Y(t)-window is selected (indicated by a white border), the Y-Position can be
adjusted using the vertical POSITION rotary knob.
Remote command:
CHANnel<m>:POSition on page 290
Main Time Base ← Y(t)-Setup
Defines the scaling for the time base in the (original) Y(t)-window in seconds per division.
The scaling is indicated by "TB" in the information bar above the window.
Reference for FFT key
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