Rohde & Schwarz FSW13, Руководство пользователя

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Common Analysis and Display Functions
R&S
®
FSW
484 User Manual 1173.9411.02 ─ 19
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Alternatively, change the position of the selected marker using the rotary knob. By
default, the marker is moved from one pixel to the next. If you need to position the
marker more precisely, change the step size to move from one sweep point to the
next (General Marker Setting).
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You can also set an active marker to a new position by defining its x-position
numerically. When you select the softkey for a marker, an edit dialog box is dis-
played.
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The most commonly required marker settings and functions are also available as
softkeys or via the context menu. Tap the marker on the touch screen and hold
your finger for about 2 seconds until the context menu is opened, then select the
required entry.
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Softkeys for active markers (displayed on the screen) are highlighted blue. The
softkey for the currently selected marker (for which functions are performed) is
highlighted orange.
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To set individual markers very quickly, use the softkeys in the "Marker" menu.
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To set up several markers at once, use the "Marker" dialog box.
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To position the selected marker to a special value, use the softkeys in the "Marker
To" menu.
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To determine more sophisticated marker results, use the special functions in the
"Marker Function" dialog box.
In addition to basic markers, sophisticated marker functions are provided for special
results such as noise or demodulation.
● Marker Types ........................................................................................................ 484
● Activating Markers .................................................................................................485
● Marker Results ......................................................................................................485
● Searching for Signal Peaks ...................................................................................486
● Performing a Highly Accurate Frequency Measurement (Signal Count) .............. 488
● Defining a Fixed Reference Marker ...................................................................... 488
● Measuring Noise Density ...................................................................................... 488
● Measuring Phase Noise ........................................................................................490
● Measuring Characteristic Bandwidths (n dB Down Marker) ..................................490
● Measuring the Power in a Channel (Band) ........................................................... 491
● Demodulating Marker Values and Providing Audio Output ...................................492
7.4.1.1 Marker Types
All markers can be used either as normal markers or delta markers. A normal marker
indicates the absolute signal value at the defined position in the diagram. A delta
marker indicates the value of the marker relative to the specified reference marker (by
default marker 1).
In addition, special functions can be assigned to the individual markers. The availability
of special marker functions depends on whether the measurement is performed in the
frequency or time domain.
Marker Usage