Measurements and Result Displays
R&S
®
ESW
117
User Manual 1177.6298.02 ─ 08
Adding and removing scan ranges
The scan table splits the frequency range into several smaller ranges (up to 100
ranges).
By default, there are already two predefined scan ranges (labeled "Range 1" and
"Range 2"). If necessary, you can add additional scan ranges or delete scan ranges
that you no longer need.
You have the following options when you design the scan table.
●
Add a new range to the left of the currently selected range (
➙
"Insert Range Before
Range <x>" button).
●
Add a new range to the right of the currently selected range (
➙
"Insert Range After
Range <x>" button).
●
Delete the currently selected range (
➙
"Delete Range <x>" button).
(The selected range is the range that is highlighted in orange. To select a range,
select the "Range x" button at the top of each column, or navigate through the
ranges with the "Prev Range" or "Next Range" buttons.)
Remote command:
Number of ranges:
[SENSe:]SCAN<sr>:RANGes[:COUNt]
Tip:
Selecting a range via SCPI is done with the suffix at
SCAN<range>
.
Delete a range: not supported by remote control
Defining a frequency range for the scan
The start and stop frequencies ("Scan Start" and "Scan Stop") define the global fre-
quency range considered during a scan.
The minimum and maximum frequencies supported by the R&S
ESW depend on the
instrument model and are defined in the datasheet.
Note:
Make sure that all scan ranges are within the global frequency range. Frequen-
cies outside the global frequency range will not be considered in the measurement.
Remote command:
Start frequency:
Adjusting the frequency axis
When you design a scan table, the frequency range of the scan ranges may not be the
same as the global frequency range you have defined for the scan.
The "Adjust Axis" button adjusts the global frequency range to the frequency range
covered by the scan ranges.
Example:
the global frequency range defines a range from 150
kHz to 500
MHz, while
the scan ranges define a range from 150
kHz to 1
GHz. When you adjust the fre-
quency, the R&S
ESW automatically expands the global frequency range to 1
GHz.
On the other hand, when the global frequency range is larger than the scan ranges,
adjusting the frequency contracts the global frequency range.
This feature is useful when the global frequency range is smaller than the scan ranges,
because frequencies outside the global range are not considered in a scan based on a
scan table.
Remote command:
not supported
Test Automation
