The Spectrum Application (RF Measurements)
R&S
®
FPL1000
348
User Manual 1178.3370.02 ─ 09
7.9.1.3
Marker Results
Normal markers point to a sweep point on the time or frequency axis and display the
associated numeric value for that sweep point. Delta markers indicate an offset
between the level at the delta marker position and the level at the position of the
assigned reference marker, in dB.
Signal count markers determine the frequency of a signal at the marker position very
accurately.
The results can be displayed directly within the diagram area or in a separate table. By
default, the first two active markers are displayed in the diagram area. If more markers
are activated, the results are displayed in a marker table.
Marker information in diagram area
By default, the results of the last two markers or delta markers that were activated are
displayed in the diagram area.
The following information is displayed there:
●
The marker type (M for normal, D for delta, or special function name)
●
The marker number (1 to 16)
●
The assigned trace number in square brackets [ ]
●
The marker value on the y-axis, or the result of the marker function
●
The marker position on the x-axis
For n dB down markers, additional information is displayed, see
.
Marker information in marker table
In addition to the marker information displayed within the diagram area, a separate
marker table may be displayed beneath the diagram. This table provides the following
information for all active markers:
Type
Marker type: N (normal), D (delta), T (temporary, internal) and number
Ref
Reference marker for delta markers
Trc
Trace to which the marker is assigned
Frame
Spectrogram frame the marker is positioned in. Displayed only when the Spectro-
gram is displayed.
X-value
X-value of the marker
Y-value
Y-value of the marker
Marker Usage
