Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

Display and Limit Lines - Receiver
ESIB
Setup of Display and Limit Lines – LINES Key Field
Display Lines – D LINES Key
Display lines are aids which, similar to markers, make the evaluation of measurement curve data more
convenient. The function of display lines is similar to that of a movable scale which can be used to
measure absolute and differential values on measurement curves.
In addition, the display lines can also be used to limit the range of search for marker functions.
The ESIB provides four different types of display lines:
• two horizontal threshold lines for setting levels or for defining level search ranges – Display Line 1/2,
• two vertical frequency lines for indicating frequencies or for determining frequency search ranges –
Frequency Line 1/2,
• a threshold line which, for example, sets the search threshold for maximum levels (Peak Search) –
Threshold Line
• a reference line which serves as the basis for mathematical correlation between measurement curves
– Reference Line
For purposes of clarity, each line is annotated on the right side of the display diagram by the following
abbreviations:
D1 Display Line 1 TH Threshold Line
D2 Display Line 2 REF Reference Line
F1 Frequency Line 1
F2 Frequency Line 2
The lines for level, threshold and reference are displayed as continuous, horizontal lines over the full
width of the diagram. They are movable in the y-direction.
The lines for frequency are displayed as vertical, continuous lines over the total height of the diagram.
They are movable in the x-direction.
Note:
The softkeys for setting and switching the display lines on and off operate similar to a threeposition
switch:
Initial condition: The line is switched off (softkey has grey background)
1 st press: The line is switched on (softkey has red background) and data entry is
activated. The position of the display line can be adjusted by using the rollkey,
the step keys or through direct numerical inputs via the data-entry
keypad. If some other arbitrary function is requested, the data-entry keypad is
disabled. In this case, the display line remains switched on (softkey has green
background).
2 nd press: The display line is switched off (softkey has grey background).
Initial condition: The line is switched on (softkey has green background)
1 st press: The line is switched on (softkey has red background) and data entry is
activated. The position of the display line can be adjusted by using the rollkey,
the step keys or through direct numerical inputs via the data-entry
keypad. If any other arbitrary function is requested, the data-entry keypad is
disabled. In this case, the display line remains switched on (softkey has green
background).
2 nd press: The display line is switched off (softkey has grey background).
1088.7531.12 4.134 E-15