User`s guide

MARKER
--STOP
MARKER
ALL OFF
MARKER
AMPTD
changes the stop frequency so that it is equal to the frequency of the
marker. This moves the active marker to the right edge of the display.
active
Front-Panel Key Access: ljMKR--t]
turns off all of the markers, including markers used for marker track and
demodulation (demodulation is only available with Option 102 or 103). Marker
annotation is also removed.
Front-Panel Key Access: m
keeps the active marker at the requested amplitude on the screen. Once
activated, the marker remains at the amplitude selected by the step keys,
knob, or numeric keypad, even if the signal frequency is changed. Pressing
any digit, 0 through 9, on the numeric keypad brings up the selected units
terminator menu. The marker will be placed on the signal furthest left at
that amplitude. If no signal exists at that amplitude, it will be placed above
the highest signal amplitude (or below the lowest trace element if it is below
all trace elements). When marker delta is active in addition to marker
amplitude, the behavior of the active marker is useful for measuring signal
bandwidths. For example, place a marker 20 dB below the peak of a signal,
press MARKER A , MARKER AMPTD . The marker readout shows the 20 dB
bandwidth.
Front-Panel Key Access: Il\nKR)
MARKER
NORM PK
Fbr Option 103 only.
provides a function similar to a normal marker when making quasi-peak
measurements. When NORM is selected, the marker can be moved anywhere
on the trace; when PK is selected, the marker is placed on the highest
on-screen signal peak after each sweep.
Front-Panel Key Access: [AUXCTRL)
MARKER
NORMAL
activates a single frequency marker at the center frequency on the active
trace if an on-screen marker is not already displayed. If there is an
on-screen marker before the MARKER NORMAL function is enabled, a
frequency marker is enabled at the position of the first marker. Use the
data controls to position the marker. Annotation in the active function
block and in the upper-right corner indicates the frequency and amplitude
of the marker. The marker stays on the trace at the horizontal screen
position where it was left unless MK TRACK ON OFF , MARKER AMPTD , or a
“marker to” softkey function (such as MARKER -4F , MARKER +REF LVL ,
MARKER +CF STEP, MARKER A +SPAN , or MARKER-+ MINIMUM ) is selected.
Pressing MARKER NORMAL turns off the marker-delta function.
Front-Panel Key Access: m
MARKER
ON
Option 105 only. Option 101 is recommended.
activates a marker in the gate utility. The MARKER ON key is accessed from
within the pulse parameter entry menus in the gate utility. If the reference
edge parameter is being entered MARKER ON turns on a trigger marker. For
pulse width and pulse repetition interval entry, it turns on a delta marker. The
delta marker will be activated at the defined reference edge, if one is available.
Otherwise, it will activate at mid screen.
Front-Panel Key Access: cswEEp_)
7-54 Key Descriptions