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If the format is changed while a fixed marker is on, the
fixed
marker values become invalid.
For example, if the value offset is set to 10
dl3
with a log magnitude format, and the format
is then changed to phase, the value offset becomes 10 degrees. However, in polar and Smith
chart formats, the specified values remain consistent between different marker types for those
formats Thus an R+jX marker set on a Smith chart format will retain the equivalent values if
it is changed to any of the other Smith chart markers.
Marker Function Menu
The
@ZZZFctn_)
key provides access to the marker function menu. This menu provides softkeys
that use markers to quickly modify certain measurement parameters without going through the
usual key sequence. In addition, it provides access to two additional menus used for searching
the trace and for statistical analysis.
The
~~~~~
. . . . . . . . . . . . . . . . . . . . . . .
/,
,,,
:zl,,
functions change certain stimulus and response parameters to make them
equal to the current active marker value. Use the knob or the numeric keypad to move the
marker to the desired position on the trace, and press the appropriate softkey to set the
specified parameter to that trace value. When the values have been changed, the marker can
again be moved within the range of the new parameters.
Marker Search
Menu
.,.,.
_
. . . . . .
. . . .
_
. . . . . . . .
. .
'l'&
..~~~~~:~~~~~~
softkey
within
the
maker
fun&ion
menu
provides
access
to
the
. . .
i;.. ;:...I:.::
:;.::...:..w;;>..:
. . . . 2 . . . . . . . .
..T
.::.
marker search menu. This menu is used to search the trace for a specific amplitude-related
point, and place the marker on that point. The capability of searching for a
specified
bandwidth is also provided. Tracking is available for a continuous sweep-to-sweep search. If
there is no occurrence of a specified value or bandwidth, the message TARGET VALUE NOT FOUND
is displayed.
_
_
_
.,.,.,., .,.,.
_
,.
.,.
_
.,.
_
'lb-get
Menu.
The
~~~:~
softkey
within the marker search menu provides access to the
target menu. This menu lets you place the marker at a specified target response value on
the trace, and provides search right and search left options. If there is no occurrence of the
specified value, the message TARGET VALUE NOT FOUND is displayed.
Marker Mode Menu
.:.,.:.::.:.:.,.:....~:.,.:.:.:.:.~:.:.:.:.:..
.,.....
.:.
%.....
._iil..;.~... . . . . . . . .
.
:.:.y:....,
;::./
me
:~~.~~~~~~~
s&key
within the
m&er
fun&ion
menu
provides
access
to
the
maker
.._....._...............~...
i:.:
. . . . . .
..i
i.. i . . . . . .
.
..__....................~....
mode menu. This menu provides different marker modes and leads to the following two
menus:
Polar
Marker Menu.
This menu is used only with a polar display format, selectable using the
m
key. In a polar format, the magnitude at the center of the circle is zero and the outer
circle is the full scale value set in the scale reference menu. Phase is measured as the angle
counterclockwise from
O”
at the positive x-axis. The analyzer automatically calculates different
mathematical forms of the marker magnitude and phase values, selected using the softkeys in
this menu. Marker frequency is displayed in addition to other values regardless of the selection
of marker type.
Smith Marker Menu.
This menu is used only with a Smith chart format, selected from
the format menu. The analyzer automatically calculates different mathematical forms of
the marker magnitude and phase values, selected using the softkeys in this menu. Marker
frequency is displayed in addition to other values for all marker types.
6-56
ApplicationandOperationConcepts