Agilent Technologies ESA Series User's/Programmer's Reference page 99

Allows you to input a frequency offset value that is added to the
Freq Offset
frequency readout of the marker, to account for frequency conversions
external to the analyzer. Offset entries are added to all frequency
readouts including marker, start frequency, and stop frequency. Offsets
may only be entered using the numeric keypad. Offsets are not added to
the span or frequency count readouts. Entering an offset does not affect
the trace display. When a frequency offset is entered, its value appears
on the bottom of the display. To eliminate an offset, perform a
Preset
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
Enter
This function is not available when
NOTE
selected.
NOTE Frequency, Scale Type (Log)
offset function.
Key Access:
Moves the signal that is nearest to the active marker to the center of
Signal Track
the display and keeps the signal there. ST appears in the lower-left
On Off
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
Marker
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.
Key Access:
If no marker is active, pressing
NOTE
perform a peak search, and center the marker on the display.
Switching to zero span sets
NOTE
NOTE FREQUENCY, Scale Type (Log)
when
Chapter 2
, or press ,
Freq Offset
. Pressing also sets the offset to zero.
Preset
is not available when utilizing the frequency
FREQUENCY Channel
;
Signal Track (Off) Preset
, ,
More Marker All Off
FREQUENCY Channel
is selected.
Signal Track (On)
, .
0 Hz
FREQUENCY, Scale Type (Log)
(with
Preset Type
turns off the signal track function.
will activate a marker,
Signal Track (On)
.
Signal Track (Off)
and
Segmented (On)
Front-Panel Key Reference
FREQUENCY Channel
Factory
, , and
Freq Offset 0
is
set to ); or
Factory
are not available
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