Download Agilent 4396B Network/Spectrum/Impedance Analyzer Function

Transcript
Markers
Three Types of Markers
Three types of markers are provided for each channel. The rst is the movable marker that is
displayed on the screen (as 5) when 4Marker5, 4Maker!5, 4Search5, or 4Utility5 is pressed. When a
marker is turned on and no other function is active, the marker can be controlled with the
knob, or the step keys. The second is the sub-markers that appear at the present marker
position when a softkey in the sub-marker menu is pressed. The seven sub-markers can be
displayed for each channel at same time (a total of 14). The third is the 1marker that denes a
reference position of the delta mode. There three 1mode, 1marker(normal), tracking 1marker,
and xed 1marker.
Marker Value
Markers have a sweep parameter value (the x-axis value in a Cartesian format) and a
measurement value (the y-axis value in a Cartesian format). In a polar, Smith, or admittance
chart format, the second part of a complex data pair is also provided as an auxiliary
measurement value.
The marker can be moved to any point on the trace, Its measurement and sweep parameter
values are displayed at the top right corner of the graticule for each displayed channel (in units
appropriate to the display format). The displayed marker measurement values are valid even
when the measured data is above or below the range displayed on the graticule. When marker
list is turned on, sweep parameter values and measurement values of all markers are listed on
the graticule. In a polar, Smith , or admittance chart format, auxiliary measurement values of
all markers are also listed.
Marker Time Mode
When marker time mode is turned on, the x-axis is changed to the time scale. The start point
of the x-axis is 0 seconds and the stop point indicates the sweep time. The markers have a time
instead of a sweep parameter value.
Continuous/Discrete Mode
Marker values of the network analyzer are normally continuous (that is, they are interpolated
between measured points). Alternatively, they can be set to read only discrete measured
points. The marker of the spectrum analyzer always reads only the discrete measured point.
Marker on the Data Trace or on the Memory Trace
If both data and memory are displayed, you can select which marker values apply to the data
trace or the memory trace. If data or memory is displayed (not both), the marker values apply
to the trace displayed. In a data math display (data+memory, data0memory, or data/memory),
the marker values apply to the trace resulting from the memory math function.
Analyzer Features 12-29