FFT
R&S
®
RTM20xx
119User Manual 1317.4726.02 ─ 01
Span ← FFT-Setup
The span is specified in Hertz and defines the width of the displayed frequency range,
which is (Center - Span/2) to (Center + Span/2). The position of the span is defined using
the "Center" function.
Note: If the FFT frequency range is selected ("Span"/"Center" is highlighted), the width
of the span can be adjusted using the horizontal SCALE rotary knob.
Remote command:
CALCulate:MATH<m>:FFT:SPAN on page 352
CALCulate:MATH<m>:FFT:FULLspan on page 352
CALCulate:MATH<m>:FFT:STARt on page 353
CALCulate:MATH<m>:FFT:STOP on page 353
Center ← FFT-Setup
Defines the position of the displayed frequency domain, which is (Center - Span/2) to
(Center + Span/2). The width of the domain is defined using the "Span" function.
Note: If the FFT frequency range is selected ("Span"/"Center" is highlighted), the width
of the span can be adjusted using the horizontal POSITION rotary knob.
Remote command:
CALCulate:MATH<m>:FFT:CFRequency on page 352
CALCulate:MATH<m>:FFT:STARt on page 353
CALCulate:MATH<m>:FFT:STOP on page 353
Y-Scale ← FFT-Setup
Changes the vertical scaling of the FFT display (in V/dBm) per division.
Note: If the FFT frequency range is selected ("Span"/"Center" is highlighted), the Y-Scale
can be defined using the vertical SCALE rotary knob.
See also "SCALE, Y-Scale" on page 29.
Remote command:
CALCulate:MATH<m>:SCALe on page 346
YT-Window ← FFT-Setup
Defines the width of the time base extract from the Y(t)-window for which the FFT is
calculated. The extract is indicated by white lines in the Y(t)-window. The value is indi-
cated by "W" in the information bar above the FFT window.
Note: If the FFT time base extract is selected ("W"/"P" is highlighted), the width can be
adjusted using the horizontal SCALE rotary knob.
Reference for FFT key
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