Using Markers - Agilent Technologies E4406A User Manual

Using Markers

Markers enable you to make measurements on screen. Keys in the
Marker
Trace
marker. The
search and activate a marker at the peak signal.
Paths to access any of the features listed below will be found next to the
specific key listed in the key access table which begins on
Trace
The Trace keys allow you to select the trace that will be used for the
other marker keys. You can then use marker features to obtain the
results you desire. To access
The selections in the
NOTE
current measurement, including windows that are not currently
displayed.
When making waveform measurements you can activate the following
trace keys:
When making spectrum measurements you can activate:
Spectrum Avg
feature places a marker on the average trace in the spectrum window.
Markers
Up to four markers can appear on the display simultaneously but only
one marker can be activated and moved at a time. This marker is called
the "active" marker. Press
the
More (1 of 2)
• Normal - Activates a single marker on the selected trace (as set by
• Select - Enables you to select one, or more, of the four available
Chapter 4
menu control the number and types of markers you can access.
keys allow you to select the trace on which you will activate a
key enables you to perform an immediate peak
Search
Trace
RF Envelope
, and
I/Q Waveform
and
Shape Marker All Off
.
the trace key) in units either of frequency or time, depending on the
measurement mode that is currently active. However, if a marker
has previously been activated, that marker will persist as the
default marker until it is changed. You can change the position of the
marker through use of the front panel step keys and RPG knob.
Annotation in the active function area and the upper right hand
corner of the display indicate the value of the active marker in units
of the window which contains that marker. Pressing
deactivates any marker delta functions which have been activated
previously.
markers. Once selected, a marker can be activated, or deactivated,
keys press
Trace
menu include traces on all windows for the
and keys.
I/Q Waveform
keys. The spectrum average trace
to access the keys below, except for
Marker
keys, which require you to press
Making Measurements
Preparing for Measurements
page 51
, .
Marker Trace
Spectrum
Marker
also
Normal
,
,
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