Remote Commands in the Receiver Application
R&S
®
ESW
446
User Manual 1177.6298.02 ─ 08
The number of results depends on the currently selected number of sweep points. For
each sweep point, the command returns one level value. The unit depends on the
measurement and on the unit you have currently set.
The trace has to be active for the command to work.
When you have selected
TRD
, only the
TRACE1
parameter is available. It
returns the characteristics of the transducer's correction values over the currently
selected frequency range.
Querying bargraph results
The SCPI parameters
SINGLE
and
PHOLD
return the results of the bargraph measure-
ment.
SINGLE
returns the current bargraph results for each active bargraph detector.
The order of detectors is as shown in the user interface. Inactive detectors are ignored.
Example:
TRAC? SINGLE
PHOLD
returns the bargraph maxhold results for each active bargraph detector.
Each result is made up out of two values:
●
Absolute level
●
Frequency
The order of detectors is as shown in the user interface. Inactive detectors are ignored.
Example:
TRAC? PHOLD
Querying scan characteristics
The SCPI parameter
SCAN
returns the scan characteristics while the scan is running.
The number of returned results depends on the scan settings.
The type of returned data is as follows:
●
4 byte, trace status:
➙
bit 0 to 9 represent the number of the scan range
➙
bit 10 represents the last block of a scan range
➙
bit 11 represents the last block of the last scan range
➙
bit 12 represents the last of all blocks (for multiple scans after the last scan)
When number of scan ranges greater than 10:
➙
bit 16 to 31 represent a value that has to be added to the bit coded range num-
ber (bit 0 to bit 9) to get the number of scan ranges. Example: bit 16 to 31 repre-
sent the value "20", bit 0 to 9 represent the value "5"; in that case the complete
number of scan ranges is "25".
●
4 byte, number
n
of measurement results contained in one trace
Measurements and Result Displays
