User manual

RIGOL Chapter 2 Front Panel Operation
User’s Guide for DSA800 Series
2-50
1. Reset
Reset VSWR measurement parameters.
2. Cal Open
Disconnect the device under test and then press this softkey. The instrument
executes the first measurerment and the measurement result is represented
by trace 2.
3. VSWR
Connect the device under test and then press this softkey. The instrument
executes the second measurement and the measurement result is
represented by trace 1. At the same time, the analyzer calculates the
difference between the two measurement results (represented by the math
trace) and calculates the return loss, reflection coefficient and VSWR on the
basis of the difference.
4. Marker
Select one marker from the four and the default is marker 1. When a marker is
selected, you can set its state. The marker sekected is marked onto the math
trace and the measurement result at the current marker is displayed in the
measurement wizard. You can use the knob to move the marker to view the
measurement results of different positions.
5. Marker State
Set the state of the current marker.
6. Ref Level
Adjust the vertical position of the trace on the screen.
 Being different from the Ref Level in the AMPT menu, this parameter
has no influence on the reference level of the analyzer.
 You can use the numeric keys, knob or direction keys to modify this
parameter.