3 VMA Mode
3.10 Spurious Emissions Measurement
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:SPURious:WINDow[1]:TRACe:Y[:SCALe]:RLEVel <real>
:DISPlay:SPURious:WINDow[1]:TRACe:Y[:SCALe]:RLEVel?
Example
:DISP:SPUR:WIND:TRAC:Y:RLEV 10 dBm
:DISP:SPUR:WIND:TRAC:Y:RLEV?
Couplings When "Auto Scaling" on page 1612 is ON (default), this value is automatically determined by the
measurement result. When you set a value manually, Auto Scaling changes to OFF
Attenuation is not coupled to "Ref Value" on page 1611
Preset 10.00 dBm
State Saved Saved in instrument state
Min/Max –/+250.00 dBm
Annotation Ref <value> top left of graph
Backwards
Compatibility
SCPI
[:SENSe]:SPURious:POWer[:RF]:LEVel
:DISPlay:SPURious: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:SPURious:WINDow[1]:TRACe:Y[:SCALe]:PDIVision <rel_ampl>
:DISPlay:SPURious:WINDow[1]:TRACe:Y[:SCALe]:PDIVision?
Example
:DISP:SPUR:WIND:TRAC:Y:PDIV 10 dB
:DISP:SPUR:WIND:TRAC:Y:PDIV?
Couplings Coupled to "Scale Range" on page 1612 as follows
Scale/Div = Scale Range/10 (number of divisions)
When "Auto Scaling" on page 1612 is ON, this value is automatically determined by the measurement
result
When you change a value, Auto Scaling automatically changes to OFF
1611 Vector Modulation Analyzer Mode User's &Programmer's Reference
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