3 Spectrum Analyzer Mode
3.5 ACP Measurement
3.5.8.1 Y Scale
Contains controls that pertain to the Y axis parameters of the measurement. These
parameters control how data on the vertical (Y) axis is displayed and control
instrument settings that affect the vertical axis.
Ref Value
Sets the value for the absolute power reference. The reference line is at the top,
center, or bottom of the graticule, depending on the value of the Ref Position
function.
Remote
Command
:DISPlay:ACPower:WINDow[1]:TRACe:Y[:SCALe]:RLEVel <real>
:DISPlay:ACPower:WINDow[1]:TRACe:Y[:SCALe]:RLEVel?
Example
:DISP:ACP:WIND:TRAC:Y:RLEV 100
:DISP:ACP:WIND:TRAC:Y:RLEV?
Couplings When "Auto Scaling" on page 896 is ON (default), this value is automatically determined by the
measurement result. When you set a value manually, Auto Scaling changes to OFF
"Attenuation" on page 1954 is not coupled to Ref Value
Preset 10.00 dBm
State Saved Saved in instrument state
Min/Max -250.00 dBm / 250.00 dBm
Annotation Ref <value> top left of graph
Backwards
Compatibility
SCPI
:DISPlay:ACPower:VIEW[1]:WINDow[1]:TRACe:Y[:SCALe]:RLEVel
Scale/Div
For measurements that support a logarithmic Y-Axis, Scale/Div sets the height of
one division of the graticule in the current Y-Axis unit.
Scale/Div also determines the displayed amplitude range in the log plot graph.
Since there are usually 10 vertical graticule division on the display, the total
amplitude range of the graph is typically 10x this amount. For example, if Scale/Div
is 10 dB, then the total range of the graph is 100 dB.
Remote
Command
:DISPlay:ACPower:WINDow[1]:TRACe:Y[:SCALe]:PDIVision <rel_ampl>
:DISPlay:ACPower:WINDow[1]:TRACe:Y[:SCALe]:PDIVision?
Example
:DISP:ACP:WIND:TRAC:Y:PDIV 5
:DISP:ACP:WIND:TRAC:Y:PDIV?
888 Spectrum Analyzer Mode User's &Programmer's Reference
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