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Marker Function
Marker Function
The Marker Function key opens up a menu of softkeys that allow you to control the Marker Functions of
the instrument. Marker Functions perform post-processing operations on marker data. Band Functions
are Marker Functions that allow you to define a band of frequencies around the marker. The band defines
the region of data used for the numerical calculations. These marker functions also allow you to perform
mathematical calculations on trace and marker data and report the results of these calculations in place of
the normal marker result.
NOTE Unlike regular markers, marker function markers are not placed directly on the
trace. They are placed at a location which is relative to the result of the function
calculation.
See “More Information” on page 1007.
See “Fixed marker functions” on page 1008.
See “Interval Markers” on page 1008.
More Information
The units to be used for displaying Marker Function results in Delta mode vary depending on what is the
reference marker and what it is referenced to.
Marker Functions are different from Measurements, which automatically perform complex sequences of
setup, data acquisition, and display operations in order to measure specified signal characteristics.
Marker Functions are specified for each individual marker and may be turned on individually for each
Remote Command :CALCulate:MARKer[1]|2|3|4|5|6|7|8|9|10|11|12:FUNCtion
NOISe|BPOWer|BDENsity|OFF
:CALCulate:MARKer[1]|2|3|4|5|6|7|8|9|10|11|12:FUNCtion?
Notes Sending this command selects the subopcoded marker
The marker function result is queried in the same fashion as the Marker
Result, as outlined in the Marker section, with the CALC:MARK:Y?
command.
Dependencies Fixed markers: It is not possible to change the Band Function for a Fixed
marker; so all of the Band Function keys are grayed out for a Fixed marker.
If a marker function was already on when the marker became Fixed then the
selected Band Function is shown but cannot be changed. Therefore, you
cannot directly set the X or Y value of a Fixed marker which has a marker
function turned on. To turn off the function, turn off the marker.
Preset OFF
State Saved The band function for each marker is saved in Instrument State
Initial S/W Revision Prior to A.02.00