Troubleshooting
R&S
®
FSW
1394User Manual 1173.9411.02 ─ 43
Invalid trace display
If output to the "IF 2 GHz OUT" connector is activated, the measured values are no
longer sent to the display; thus, the trace data currently displayed on the R&S FSW
becomes invalid. A message in the status bar indicates this situation.
Data capturing takes too long
Particularly for FFT sweeps, the time required to process the data may be considerably
longer than the time required to capture the data. Thus, if you only consider the defined
sweep time, you may assume an error has occurred if the measurement takes longer
than expected.
However, while the sweep time only defines the time in which data is actually captured,
the total sweep duration includes the time required for capturing and processing the
data. Thus, for FFT sweeps in the Spectrum application, the sweep duration is now
also indicated in the channel bar, behind the sweep time. In remote operation, the esti-
mated sweep duration can be queried for all sweep modes (also zero span and fre-
quency sweeps).
Tip: To determine the necessary timeout for data capturing in a remote control pro-
gram, double the estimated time and add 1 second.
Remote command:
[SENSe:]SWEep:DURation? on page 1035
Multiple user access to one instrument
Using the R&S FSW's LXI browser interface, several users can access and operate the
same instrument simultaneously. This is useful for troubleshooting or training purpo-
ses.
Type the instrument's host name or IP address in the address field of the browser on
your PC, for example "http://10.113.10.203". The instrument home page (welcome
page) opens.
For details see "LXI Web Browser Interface" on page 734.
Note: This function can be deactivated for the instrument. After a firmware update, it is
automatically activated again.
Web browser access to instrument fails
If an error message ("Failed to connect to server (code. 1006)") is displayed in the web
browser instead of the instrument's user interface then the LXI web browser interface
was probably deactivated.
For details see Chapter 13.6.6, "How to Deactivate the Web Browser Interface",
on page 808).
The transducer factors/limit lines applied to my measurement are different to
those displayed in the Transducer/Lines dialog box
If a transducer file was in use when the save set was stored (with the save item "Cur-
rent Settings" only) it is anticipated that these transducer values should remain valid
after every recall of that save set. Thus, even if the transducer file is changed and the
original save set file is recalled later, the originally stored transducer values are recal-
led and applied to the measurement. In the "Transducer" dialog box, however, the
changed transducer file values are displayed as no updated transducer file was loa-
ded.
Miscellaneous Troubleshooting Hints
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