6-38 Chapter6
Front-Panel Key Reference
FREQUENCY Channel
When a frequency offset is entered, its value appears on the bottom of
the display (as opposed to reference level offsets, which appear on the
left side of the display). To eliminate an offset, press
Freq Offset, 0, and
Enter. Pressing Preset also sets the offset to zero.
Signal Track
On Off
Moves the signal that is nearest to the active marker to the center of
the display and keeps the signal there. ST appears in the lower-left
corner of the display. An (*) may appear in the upper-right corner of the
display while the analyzer is verifying that it has the correct signal.
Pressing
Signal Track (Off), Preset or Marker, More 1 of 2, Marker All Off
turns off the signal track function.
When signal track is on and the span is reduced, an automatic zoom is
performed and the span is reduced in steps so that the signal remains
at the center of the display. If the span is zero, signal track cannot be
activated.
NOTE If no marker is active, pressing Signal Track (On) will activate a marker,
perform a peak search, and center the marker on the display.
NOTE Pressing Marker, Delta or Marker, Normal sets Signal Track (Off).
NOTE Switching to zero span sets Signal Track (Off).
NOTE Segmented sweep is not available when Signal Track(On) is selected.
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