R&S FSW Series, Руководство пользователя

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General Instrument Setup
R&S
®
FSW
660 User Manual 1173.9411.02 ─ 43
Note: If you start a self-alignment remotely, then select the "Local" softkey while the
alignment is still running, the instrument only returns to the manual operation state
after the alignment is completed. In this case, you cannot abort a self-alignment man-
ually.
Await Warm-Up Operation before Self Alignment
Displays a message indicating the remaining warmup time required before self-align-
ment is performed. After the warmup operation has completed, self-alignment is star-
ted automatically.
Shut down Device after Self Alignment
If activated, the R&S FSW is automatically shut down after self-alignment is completed.
Note that the instrument cannot be restarted via remote control.
Reuse Old Alignment Data
If data from a previous self-alignment is available on the instrument, it can be reused
even though the instrument claims the instrument is uncalibrated. This is useful, for
example, after activating a software option or updating the firmware to a beta version.
After rebooting the instrument, you must re-activate this function if you still want to
reuse the old alignment data.
Note, however, that re-using old alignment data can lead to inaccurate measure-
ment results, or even cause the R&S FSW firmware to fail altogether . For mea-
surements using old alignment data, an [OLD CAL] message is indicated in the status
bar (instead of [UNCAL], which indicates that a new self-alignment is actually
required.)
To measure with the accuracy specified in the data sheet, always perform a self-
alignment
when the instrument calls for it.
Start Preselector Centering
Due to changes in temperature, the YIG-preselector frequency may become slightly
offset. This function re-aligns the preselector quickly, without requiring a full self-align-
ment of the R&S
FSW.
This function is only available for R&S FSW models 1331.5003Kxx, and only if a YIG-
preselector is available.
Remote command:
CALibration:PRESelection
on page 1263
Starting Touch Screen Alignment
Starts the touchscreen alignment.
Tap the 4 markers on the screen as you are asked to do. The touchscreen is aligned
according to the executed pointing operations.
Alignment Results:
Information on whether the alignment was performed successfully and on the applied
correction data is displayed. The results are available until the next self-alignment
process is started or the instrument is switched off.
Remote command:
CALibration:RESult?
on page 1263
Alignment