Trace 1; Trace 2; Markers; Scale Reference Line Value - Agilent Technologies E4991A Operation Manual

Function Overview
Names and Functions of LCD Display Areas

5. Trace 1

This is one of the traces that can be displayed simultaneously on the E4991A. The bar
indicating the trace and scale colors of Trace 1 as well as the measurement parameter
names and their units (in this example, |Z| [Ω]) are displayed in the upper-left corner of the
graph. The asterisk ("*") to the left of the trace number (1 for this trace) indicates that the
trace is the active trace (target trace for setups). One of the traces on the screen must be the
active trace, and any changes to the trace setup are executed for the active trace. The active
trace is changed in sequential order by pressing the key of "4. Measurement block
(MEASUREMENT)" on page 23.

6. Trace 2

This is one of the traces that can be displayed simultaneously on the E4991A. The bar
indicating the trace and scale colors of Trace 2 as well as the measurement parameter
names and their units (in this example, θ
[°]) are displayed in the upper-middle area.
z

7. Markers

These are used to read the values on a trace as numeric values. The value at each marker
position is displayed in the "3. Marker values" on page 34.

8. Scale reference line value

This displays the value of the scale reference line, which is a horizontal dotted line
displayed in the same color as the corresponding trace.

9. Trace 1 axis

This displays the axis and scale of Trace 1.

10. Sweep start value

This displays the current sweep start value.

11. Sweep stop value

This displays the current sweep stop value.

12. Trace 2 axis

This displays the axis and scale of Trace 2.
38 Chapter 2