R&S ESCI Receiver – SWEEP Key
1166.6004.12 4.43 E-2
Frequency Scan - SWEEP Key
Scan in the Frequency Domain
In the scan mode, R&S ESCI measures in a predefined frequency range with selectable step width and
measurement time for each frequency.
Either the current receiver settings or the settings defined in the Scan table are used. Up to 10
subranges which need not be next to each other can be defined within one scan. The subranges are
then scanned by R&S ESCI one after the other. Measurement ranges should not overlap. The
parameters to be measured in each subrange can be selected independently (SWEEP menu, SCAN
TABLE table).
Transducer factors or transducer sets and limit lines can be defined and displayed separately and are
not part of the scan data record.
The scanned frequency range is defined by the start and stop frequency set independently of the scan
table (SCAN TABLE table or FREQUENCY menu). A scan table can thus be defined for each
measurement task, which can be stored and reloaded. The required frequency range can be defined by
means of two parameters which can be set via keys so that no elaborate editing has to be done in the
scan table.
scan ranges
transducer set
start frequency stop frequency
Fig. 4-7 Definition of scan range
Scanning is started with the RUN softkey. The scan can be performed as a single scan or continuously.
In the case of single scan it is stopped when the stop frequency is reached. The continuous scan can be
interrupted with the HOLD SCAN softkey or terminated with STOP SCAN.
The maximal number of measured frequencies is limited to 100.000. A maximum of 3 x 100.000 values
(100.000 per detector) can be stored for postprocessing. If the scan subranges are defined so that more
than the possible values would be measured, a respective message is output upon the scan start.
Afterwards the scan is performed up to the maximum value.
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