Rohde & Schwarz FPC1000, User Manual

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The Spectrum Application
FPC1000
99
User Manual 1178.4130.02 ─ 02
The vertical position is usually the measured level. Normal markers show the mea-
sured level as an absolute level in dBm. Delta markers indicate the level relative to
the first marker.
In Figure 9-17 , for example, the level measured at delta marker 2 ("D2") is a few
dB less than the level measured for marker 1 ("M1").
● Marker Positioning .................................................................................................. 99
● Automatic Marker Positioning ............................................................................... 101
● Marker Search Ranges ......................................................................................... 101
9.9.1 Marker Positioning
You can position the markers on any trace point you like. The R&S FPC1000 also pro-
vides some useful tools to position markers automatically .
Positioning a marker
1. Press the "Mkr" key to open the marker menu.
If, as yet, no marker is active, the R&S FPC1000 automatically activates a normal
marker ("M1") and positions it on the highest level that has been measured. In
addition, the "Marker" input field opens.
The "Marker" input field allows you to define the position of the marker on the x-
axis.
2. You can change the marker position in several ways.
● Move the marker with the cursor keys.
Use the "Up" and "Down" cursor keys to move the marker to the left or right of
its current position. The step size (the distance the marker moves) is 10
% of
the span.
● Move the marker with the rotary knob.
Use the rotary knob to move the marker to the left or right of its current posi-
tion. The step size (the distance the marker moves) is one pixel.
● Enter a marker position with the number keys.
Enter a specific frequency or time to move the marker to that position (for
example 100
MHz if you want to know the level measured at that frequency).
● Position the marker automatically .
You can turn off the marker at any time by selecting the "Marker 1" menu item.
Adding additional markers
1. Press the "Mkr" key to open the marker menu.
At the same time, the R&S FPC1000 activates the first marker ("M1").
2. Select the "Marker <x>" menu item (not "Marker 1" because that would deactivate
the first marker).
The R&S
FPC1000 adds a second marker to the diagram.
When a normal marker is already active, each marker that you add will automati-
cally be a delta marker.
Marker Configuration
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