HP 8753E manual Marker Function Menu, Is displayed

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.

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.................../,.... ,,, :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

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'l'& ..~~~~~:~~~~~~softkey within the maker fun&ion menu provides access to the

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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.

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'lb-getMenu. 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

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me :~~.~~~~~~~ s&key within the m&er fun&ion menu provides access to the maker

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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.

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