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MARKER NORMAL
PEAK SEARCH
NEXT PEAK
Chapter 3
Using 8563A, 8561B, 8560A, or 8560 E/EC-Series Spectrum Analyzers
activates a single marker and places it at the center of the trace. This
softkey is also annotated as
has been previously activated by the
the
menus.
MKR
If one marker is already on, no operation takes place. If two markers
are on (as in
MARKER DELTA
the anchor marker and makes the active one the new, single marker.
The marker reads the amplitude and the frequency (or relative time,
when the frequency span equals 0 Hz), and displays these values in
the active function block and in the upper-right corner of the display.
To move the marker, use either the knob, the step keys, or the data
keys.
The marker reads data from the currently active trace. (An active
trace is one in either the clear-write or max-hold mode; this may be
either trace A or trace B.) If both traces are active, or if both traces
are in view mode, the marker reads data from trace A.
places a marker on the highest point on a trace. The frequency and
amplitude of the marker are displayed in the upper-right corner of
the screen;
PEAK SEARCH
moves the active marker to the next highest trace point relative to
the current marker position. This function finds successively lower
peaks when the key is pressed repeatedly. The peak excursion and
the peak threshold criteria are applied to determine the next highest
peak.
, if delta-marker mode
MARKER DELTA
MARKER DELTA
mode), pressing
MARKER DELTA
does not alter the active function.
Operation
softkey under
deletes
79
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