The Spectrum Application
FPC1000
107
User Manual 1178.4130.02 ─ 02
You can also move the display line with the rotary knob or the cursor keys. The step
size for movement with the rotary knob is one pixel. The step size for the cursor keys is
10
% of the display range.
Using a display line
1. Press the "Lines" key to open the lines menu.
2. Select the "Display Line" menu item.
The R&S
FPC1000 displays the display line as a blue horizontal line. It shows the
vertical position (usually a level value) of the line in a table above the diagram
area.
When you activate the display line, the R&S
FPC1000 also opens an input field to
define the vertical position of the line.
3. Position the limit line by entering a level value into the input field.
Alternatively you can also move the display line with the rotary knob or the cursor
keys.
Figure 9-19: Display line at -38 dBm
9.12 Limit Lines
Access
(limit lines menu): "Lines"
Limit lines are an analysis tool that allows you to compare the measured signal levels
to signal specifications, and determine if the signal levels comply to the specifications.
Remote commands to configure limit lines:
●
Chapter 13.10.11, "Limit Lines"
A limit line is made up out of two or more points that are connected to a line. Each of
the points that define the shape of the limit line consists of two coordinates. One coor-
dinate defines the horizontal position (for example the frequency), the other one the
vertical position (usually a level value). You can make limit lines that consist of up to
1000 points.
Limit Lines
北京海洋兴业科技股份有限公司（证券代码：839145）
www.hyxyyq.com
