RIGOL DSA875 - Manual (Page 134)

RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA800 Series 2-82
Off
Turn off the marker currently selected. The marker information displayed on the
screen and functions based on the marker will also be turned off.
Mkr Trace
Select the trace to be marked by the current marker from 1, 2, 3, Math or Auto
(default). When Auto is selected, the system searches for the desired trace in the
order of Clear Write, Max Hold, Min Hold, Video Avg, Power Avg and Freeze; then
selects one from them in the sequence of the trace number 1, 2 and 3 if more than
two traces are found.
Readout
Select a desired readout type of the X-axis for the marker and different markers
can use different readout types. This setting will change the readout type and
affect the marker readings in the active function area and at the upper right corner
of the screen, but will not change the actual value.
 Frequency
In this type, Normal marker shows the absolute frequency; while Delta
marker, Delta Pair marker and Span Pair marker show the frequency
difference between the delta marker and reference marker. The default
readout mode in non-zero span mode is “Frequency”.
Note: This type is invalid in Zero span mode.
 Period
In this type, Normal marker shows the reciprocal of frequency; while Delta
marker, Delta Pair marker and Span Pair marker show the reciprocal of
frequency difference. When the frequency difference is zero, the reciprocal is
infinite and 10 Ts is displayed.
Note: This type is invalid in Zero span mode.