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10. Scale
This key is used to select a unit of Y axis of the graph in VSWR and DTF
measurement modes.
Either VSWR or Return Loss can be selected. In Cable Loss measurement
mode, Return Loss only can be selected.
11. Auto Scale
The instrument can automatically set the scale to the minimum and
maximum values of a measurement on the Y-axis of the graph for optimum
display of the traces. Every time AUTO SCALE key is pressed, the top and
bottom scales are set to the minimum and maximum values with margin on
the Y-axis of the screen display.
12. Hold
This key is used to pause a sweep in all measurement modes. The
Hold state is activated by pressing the Hold key, and it is
maintained even if users change the measurement mode. The
sweep resumes when the Hold key is pressed again.
When Sweep Mode is set Single in the System screen menu, a Hold
message is displayed on the screen in red color and the
measurement stops at the completion of a single sweep. Pressing
the Hold key it triggers another single sweep.
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