List Mode R&S SMB
1407.0806.32 4.54 E-2
Ext Trigger Input Slope
Sets the polarity of the active slope of an applied instrument trigger.
This setting affects the INST TRIG input (BNC connector at the rear of
the instrument).
Positive
The rising edge of the trigger signal is active.
Remote-control command:
SOUR:INP:TRIG:SLOP POS
Negative
The falling edge of the trigger signal is active.
Remote-control command:
SOUR:INP:TRIG:SLOP NEG
List Mode
Similar to a sweep, a series of previously defined frequency and level points is processed in LIST
mode. In contrast to a sweep, however, a list with freely selectable value pairs (frequency and level)
can be created. The value range for frequency and level covers the entire configurable value range of
the instrument.
Note:
LIST mode and sweeps can not be activated simultaneously, they deactivate each other.
The lists can be created in the List Editor. Each list is stored in its own file with the predefined file
extension *. lsw. The name of the List file can be freely selected. The files are loaded from the Lists...
file manager. Externally created tables with pairs of frequency and level values can be converted into
List files using the import function. The external files must have the file extension *.txt or *.csv. These
file formats are provided e.g. by the Microsoft Excel program. The separators for table columns and for
decimal floating-point numerals can be set. In addition, internally created List data can be exported into
ASCII files using the export function.
The necessary hardware settings are calculated the first time a list is processed. With long dwell times,
this calculation can be performed while the list is being processed; the entered dwell times are
observed. With very short dwell times, calculation of the hardware settings increases the dwell time for
the initial processing cycle; the entered value is only observed from the second processing cycle
onwards. In this case a message appears to inform the user that there is a deviation between the
current and set dwell times. No further calculations are required after the first run through a list. The
current dwell times will definitely no longer deviate from the set dwell times.
The list is processed from the beginning to the end of the list (modes Auto, (External) Single,
(External) Step).
List Mode menu
The List Mode menu is opened in the RF function block or using the MENU key under RF.
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