RIGOL
Chapter 4 Functions of the Front Panel of EMI
4-32 RSA3000E User Guide
Application of the "Delta" Marker
It is used to measure the S/N ratio of the single spectrum signal.
Move the reference marker to the location where the signal resides, and
move the Delta marker to the location where the noise resides. The
amplitude displayed in the measurement results is S/N ratio.
3.
Off
Turns off the marker currently selected. Then, the marker information displayed
on the screen and the functions concerning the marker will also be disabled.
Reference Marker
Sets the reference marker for the current marker. By default, the reference marker is
the marker next to it.
Remarks:
Each marker can have another marker to be its reference marker.
If the current marker is a Delta marker, the measurement result of the marker
will be determined by the reference marker.
Any marker cannot take itself to be the reference marker.
Marker Trace
Selects the trace that the current marker marks. It can be Trace 1, Trace 2, and Trace
3. One marker can only mark one trace. The selected trace determines the position
of the marker and the final readout results.
Marker Frequency
Sets the frequency of the marker to change the position of the marker on the trace.
Press this key to modify the value to change the position of the marker.
Table 4-16 Marker Frequency
Parameter
Remarks
Default
515 MHz
Range
0 Hz to 3 GHz
Unit
GHz, MHz, kHz, Hz
Knob Step
step = span/(sweep points – 1)
Left/Right Arrow Key Step
Up/Down Arrow Key Step
step = span/(sweep points – 1)*100
