122 Chapter 2
Front-Panel Key Reference
Marker
Off Turns off the marker that has been selected by the Select Marker 1 2 3 4
key.
Off also turns off functions related to the selected marker such as
signal track and demodulation. It also removes marker annotation from
the display.
Key Access:
Marker
Select Marker
1 2 3 4
Selects one of the four possible markers. A marker that has already
been turned on will become active when it is selected. If a marker has
already been turned on and assigned to a specific trace, it will become
active on that trace if that marker is selected.
Key Access:
Marker, More
Marker Trace
Auto 1 2 3
Assigns a marker to a trace. Pressing Marker Trace Auto 1 2 3 will
activate a marker on trace 1 if there are no markers turned on. If a
marker is currently active, press
Marker Trace Auto 1 2 3 until 1, 2, or 3 is
underlined. The active marker will be moved to the selected trace.
Selecting the
Auto mode will move the marker to the trace that is
automatically selected. The selection order is to look for the lowest
numbered trace in the following order of trace modes: clear-write,
max- hold, min-hold, view-mode. If there are no traces in any of these
modes, it selects trace 1.
Key Access:
Marker, More
Readout
Accesses the following menu keys that allow you to change the active
marker readout.
Key Access:
Marker, More
Frequency
Sets the marker to Frequency. The default selection in
non-zero spans, displays the absolute frequency of a
normal marker or the frequency of the delta marker
relative to the reference marker.
Key Access:
Marker, More, Readout
Period
Sets the marker readout to Period. Displays the
reciprocal of the above frequency.
Key Access:
Marker, More, Readout
Time
Sets the marker readout to Time. The default selection
in zero span, displays the time interval between a
normal marker and the start of the sweep or the time of
the delta marker relative to the reference marker.
Key Access:
Marker, More, Readout
Inverse Time
Sets the marker readout to Inverse Time. Displays the
reciprocal of the above time interval.
Key Access:
Marker, More, Readout
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