R&S FSW Series, User Manual

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Troubleshooting
R&S
®
FSW
1390 User Manual 1173.9411.02 ─ 43
Table 16-2: List of keywords
DATA ERR For the optional Digital Baseband Interface only:
Error in digital I/Q input data
For details on the optional Digital Baseband Interface, see the R&S FSW I/Q Ana-
lyzer User Manual.
FIFO OVLD For Digital Baseband Interface (R&S FSW-B17) only:
Input sample rate from connected instrument is too high
For details on the optional Digital Baseband Interface, see the R&S FSW I/Q Ana-
lyzer User Manual.
IF OVLD Overload of the IF signal path in the A/D converter or in the digital IF.
●
Increase the reference level.
INPUT OVLD The signal level at the RF input connector exceeds the maximum.
The RF input is disconnected from the input mixer to protect the device. To re-enable
measurement, decrease the level at the RF input connector and reconnect the RF
input to the mixer input.
(See "RF Input Protection" in the R&S FSW User Manual).
LOUNL Error in the instrument's frequency processing hardware was detected.
NO REF Instrument was set to an external reference but no signal was detected on the refer-
ence input.
OVEN The optional OCXO reference frequency has not yet reached its operating tempera-
ture. The message usually disappears a few minutes after power has been switched
on.
OVLD Overload of the input signal path after the input mixer; (only when RF input path is
NOT used, e.g. for input from the optional Digital Baseband Interface or the optional
Analog Baseband Interface).
●
Reduce the input level.
●
For instruments with the option R&S FSW-U85, when measuring signals higher
than 43 GHz and levels higher than -10 dBm, increase the manual attenuation.
PLL UNLOCK For the optional Digital Baseband Interface only:
Error in digital I/Q input data
For details on the optional Digital Baseband Interface, see the R&S FSW I/Q Ana-
lyzer User Manual.
RF OVLD Overload of the input mixer or of the analog IF path.
●
Increase the RF attenuation (for RF input).
●
Reduce the input level (for digital input)
UNCAL One of the following conditions applies:
●
Correction data has been switched off.
●
No correction values are available, for example after a firmware update.
●
Record the correction data by performing a self alignment
(For details refer to
Chapter 5.1.1.6, "Performing a Self-Alignment and a Self-
test" , on page 29).
WRONG_FW The firmware version is out-of-date and does not support the currently installed hard-
ware. Until the firmware version is updated, this error message is displayed and self-
alignment fails.
(For details refer to Chapter 12.6.4, "Firmware Updates" , on page 706).
Error Information