Specifications

142 Chapter 7
Measurement Result Processing
Using Marker Function
Reading Measurement Value at Marker Position
The following GPIB command can be used to select a marker from 1-8 and read the
measurement value at the specified marker position.
• CALC{1-5}:MARK{1-8}:Y? on page 339
The following GPIB command can be used to read the measurement value at the reference
marker position.
• CALC{1-5}:MARK:REF:Y on page 335
Selecting Measurement Value Format (Complex Trace)
For markers on a scalar trace, a measurement value at the marker position is read based on
the measurement parameter selected by the
CALC{1-5}:FORM command. For markers
on a complex trace, a measurement value at the marker position is read in the format
selected by the following GPIB command.
• CALC{4-5}:MARK:FORM on page 310
Setting Δ Mode
In a marker’s Δ mode, the instrument reads the deviation between stimulus values at the
specified marker position and at the reference marker as well as the deviation between
measurement values at the specified marker position and at the reference marker.
Selecting Reference Marker Mode
The following GPIB command can be used to select either the Δ mode, where the reference
marker is set to a stimulus value on the current trace, or the fixed Δ mode, where the
reference marker is set to both the current stimulus and the measurement value.
• CALC{1-5}:MARK:REF:TYPE on page 333
Setting and Reading Measurement Value at Reference Marker Position (Fixed Δ
Mode)
If the fixed Δ mode is selected, the following GPIB command can be used to move the
reference marker to the specified measurement value. If this command is executed in the
query format, the measurement value at the current reference marker position is read.
• CALC{1-5}:MARK:REF:Y on page 335
For a complex trace, move the reference marker to the specified measurement value by
first specifying the measurement value with the real and imaginary part of the complex.