HP ESA-L1500A User's And Calibration Manual page 87

Front-Panel Key Reference
Marker
turns the selected marker on or off. The marker which is currently
Marker # On Off
selected by the
new marker is turned on by pressing
Auto A B C
the trace that is selected by the Auto mode. Key Access:
reads out the average noise level, referenced to a 1 Hz noise power
Marker Noise On
Off bandwidth. If no marker is present, a marker appears at the center of
the display. The root-mean-square noise level (the mean value of the
32 display points about the marker) normalized to a 1 Hz noise power
bandwidth, is read out. The sample detector is activated. If Marker
Noise is turned On while a Marker
level is measured. Key Access:
accesses a menu which allows you a selection of specific marker
Mkr Readout
information. The selections include
Time
turns off all of the markers, including markers used for marker track
Marker All Off
and demodulation. Marker annotation is also removed.
Key Access:
assigns a marker to a trace. Pressing
Marker Trace Auto
A B C activate a marker on trace A if there are no markers turned on. If a
marker is currently active, press
are underlined. The active marker will be moved to the selected trace.
Selecting the
automatically selected. The selection order is to first look for a trace in
the clear-write mode, in the order of trace A, then trace B, then trace C.
If no traces are currently being written, it will select a trace in the
view-store mode, again in the order of trace A, B, then C.
Key Access:
86
Select Marker 1 2 3 4
function always switches to
. Key Access:
Marker
Marker
mode will move the marker to the trace that is
Auto
,
Marker More
key, will be turned on or off. When a
Marker # On Off
and the marker is put on
Auto
is selected, the signal-to-noise
Marker
,
Frequency Period
Marker Trace Auto A B C
Marker Trace Auto A B C
, the
Marker Trace
Marker
, , and
Time Inverse
will
until , , or
A B C
Chapter 4