R&S FSL Using Markers and Delta Markers – MKR Key
1300.2519.12 4.59 E-11
Marker 1/Marker 2/Marker 3/Marker 4/Marker Norm/Delta
The Marker <no> softkey activates the corresponding marker and opens an edit dialog box to
enter a value for the marker to be set to. Pressing the softkey again deactivates the selected
marker.
If a marker value is changed using the rotary knob, the step size is defined via the Stepsize
Standard or Stepsize Sweep Points softkeys.
Marker 1 is always the reference marker for relative measurements. If activated, markers 2 to 4
are delta markers that refer to marker 1. These markers can be converted into markers with
absolute value display by means of the Marker Norm/Delta softkey. If marker 1 is the active
marker, pressing the Marker Norm/Delta softkey switches on an additional delta marker.
Remote: CALC:MARK ON
Remote: CALC:MARK:X <value>
Remote: CALC:MARK:Y?
Remote: CALC:DELT ON
Remote: CALC:DELT:X <value>
Remote: CALC:DELT:X:REL?
Remote: CALC:DELT:Y?
Noise Meas On/Off
Switches the noise measurement for the active marker on or off. The corresponding marker
becomes the normal marker. For more details on noise measurement see "Measurement of
noise density" on page 4.56.
Remote: CALC:MARK:FUNC:NOIS ON
Remote: CALC:MARK:FUNC:NOIS:RES?
Phase Noise/Ref Fixed
The function of this softkey depends on the setting of the Noise Meas softkey:
– Noise Meas On: activates phase noise measurements.
– Noise Meas Off: freezes the current position of marker 1 as a reference for relative
measurements. Additionally it opens a submenu to set all values of a reference point. Instead of
using the current values of the reference marker (marker 1) as reference point for the delta
markers, level and frequency or time are set to fixed values and used as reference point.
Phase Noise On/Off
Switches the relative measurement to a fixed reference value on or off. The level and frequency
or time values of marker 1 immediately become the reference point, but can be altered using the
corresponding softkeys (Ref Point Level, Ref Point Frequency, Ref Point Time and Peak
Search).
Remote: CALC:DELT2:FUNC:FIX ON
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