Operating Manual EMI TEST RECEIVER ESIB7 - Rohde & Schwarz

ESIB
Analyzer - Display and Limit Lines
Name and Compatible - Switching on limit lines
A maximum of 8 limit lines can be switched at any one time. A check mark at
the left edge of a cell indicates that this limit line is switched on. A limit line
can only be switched on when it has a check mark in the Compatible column,
i.e., only when the display mode of the x-axis (time or frequency) and y-axis
units are identical to those in the measurement window.
It should be noted that lines with dB scales are compatible with all dB(..)
scales of the Y-axis.
If the trace assigned to a line is not switched on, the line is displayed in the
window the trace would be displayed in.
Example:
In split screen mode, trace 2 is assigned measuring window B. A line
assigned to trace 2 is always displayed in measurement window B.
If the y-axis unit or the domain (frequency or time) are changed, all noncompatible
limit lines are automatically switched off in order to avoid
misinterpretations. The limit lines must be switched on again when the
original display mode is restored.
IEC/IEEE-bus commands
:CALCulate:LIMit:NAME ;
:CALCulate:LIMit:STATe ON | OFF
Limit Check - Activating the limit check
When LIMIT CHECK ON is activated, a limit check is performed automatically
on the active screen. In the center of the screen, a display window containing
the results of the limit check test appears:
LIMIT CHECK: PASSED No out-of-limits conditions.
LIMIT CHECK: FAILED One or more out-of-limits conditions. The
message contains the names of the limit lines
which were violated or whose margins were not
complied with.
LIMIT CHECK: MARGIN
The margin of at least one active limit line was not
complied with, however, no limit line was violated.
The message contains the names of the limit lines
whose margins were not complied with.
The following example shows three active limit lines:
LIMIT CHECK: FAILED
LINE VHF_MASK: Failed
LINE UHF2MASK: Margin
A limit check is performed only if the trace associated with the limit line is
turned on.
If LIM CHECK is set to OFF for all active limit lines, then the limit line check is
not executed and the display field not activated.
IEC/IEEE-bus command :CALCulate:LIMit:FAIL?
1088.7531.12 4.219 E-15