Common Analysis and Display Functions
R&S
®
FSW
513User Manual 1173.9411.02 ─ 19
n dB down Marker State
Activates or deactivates the special n dB down marker function.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:STATe on page 962
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:RESult? on page 962
n dB down Delta Value
Defines the delta level from the reference marker 1 used to determine the bandwidth or
time span.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:FREQuency? on page 961
CALCulate<n>:MARKer<m>:FUNCtion:NDBDown:TIME? on page 963
7.4.3.5 Reference Fixed
Instead of using a reference marker that may vary its position depending on the mea-
surement results, a fixed reference marker can be defined for trace analysis. Once
positioned, the reference marker does not move during subsequent sweeps unless you
explicitely move it manually.
When you select this marker function, a vertical and a horizontal red display line are
displayed, marked as "FXD". A normal marker is activated and set to the peak value
and a delta marker to the next peak. The fixed reference marker is set to the position of
the normal marker at the peak value. The delta marker refers to the fixed reference
marker.
You can move the position of the fixed reference marker graphically by dragging the
display lines, or numerically by entering values for the marker position and level.
For more information see chapter 7.4.1.6, "Defining a Fixed Reference Marker",
on page 488.
Marker Usage
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