Agilent Technologies E4445A User Manual
392
Chapter 5
One-Button Measurement Functions
Marker (Complementary Cumulative Distribution Function—CCDF)
O
n
e-
But
ton
M
easur
e
m
e
nt
Funct
ions
5.13.1
Select Marker
Selects one of the four possible markers. Once a marker is selected, it can be set to any of
the control modes
the control modes
Normal
,
Delta
, or
Off
.
Key Path:
Marker
(after
MEASURE
,
Power Stat CCDF
is selected.)
State Saved:
The number of the selected marker is saved in instrument state.
Factory Preset: Marker 1
Remote Command:
:CALCulate:PSTatistic:MARKer[1]|2|3|4[:STATe] OFF|ON|0|1
:CALCulate:PSTatistic:MARKer[1]|2|3|4[:STATe]?
Sets or queries the state of a marker. Setting a marker to state ON or 1 selects that
marker. Setting a marker which is OFF to state ON or 1 puts it in
marker. Setting a marker which is OFF to state ON or 1 puts it in
Normal
mode and places
it at the center of the display. Setting a marker to state OFF or 0 selects that marker and
turns it off. The response to the query will be 0 if OFF, 1 if ON.
turns it off. The response to the query will be 0 if OFF, 1 if ON.
Example:
CALC:PST:MARK2 ON
selects marker 2.
CALC:PST:MARK:STAT ON
will not modify a marker that is already on.
5.13.2
Normal
Sets the control mode for the selected marker to
Normal
. If the marker is off, a single
marker is activated at the 0 dB point of the selected trace (see
).
You can then adjust the selected marker using the numeric keypad, knob, or
Ý ß keys.
Key Path:
Marker
(after
MEASURE
,
Power Stat CCDF
is selected.)
Factory Preset: Off
Remote Command:
See
for the mode command.
Example:
CALC:PST:MARK:MODE NORM
selects marker 1 and sets it to
Normal
.
5.13.3
Delta
Sets the control mode for the selected marker to
Delta
. In
Delta
mode the display shows the
difference between the active (
Delta
) marker and a reference marker. When
Delta
mode is
selected the reference marker is placed at the current marker position, unless the marker
was
was
OFF
, in which case both the active marker and the reference marker are placed at 0 dB
point of the selected trace (see
). You can adjust the trace point of
the active delta marker. Annotation in the active function block and in the upper-right
corner of the display indicates the power ratio (dB) difference and probability (percentage)
difference of the two markers.
corner of the display indicates the power ratio (dB) difference and probability (percentage)
difference of the two markers.