R&S ZVL
Error Messages
Asynchronous Errors
Operating Manual 1303.6580.32-05
604
10 Error
Messages
An error generally causes the analyzer to display a tooltip across the lower part of the screen. The tooltip
provides a textual description of the error, e. g.:
The errors can be divided into three categories:
•
Remote errors (SCPI errors) may occur during the execution of a remote control program. They
include an error code, followed by the short description of the error. Remote errors are specified
and described in the SCPI standard; they are cleared upon
*CLS
.
•
Software errors (setting errors) can occur e.g. if numeric entries in an analyzer dialog are
incompatible with each other or with the current analyzer state. These errors are generally self-
explanatory and easy to correct.
•
Hardware errors indicate an incorrect hardware state. Hardware errors with possible causes and
remedies are listed below.
Hardware error categories
Hardware errors can be detected at various stages of the start-up or measurement procedure.
•
Configuration errors occur on start-up of the analyzer, e.g. if a hardware module or configuration
file cannot be detected. Configuration errors cause an entry in the error log
(Info – Error Log)
.
•
Asynchronous errors can occur any time while the analyzer is operating. The analyzer is checked
periodically for asynchronous errors.
Asynchronous Errors
Asynchronous errors can occur any time while the analyzer is operating. The analyzer is checked
periodically for asynchronous errors. Many of these errors also cause an entry in the status reporting
system.
Error Description
Remedy
Bit
no.*)
Receiver
overload
The analyzer detects an excessive input level at
one of the ports.
Reduce RF input level at the
port. Check amplifiers in the
external test setup.
3
IF overload
The level in the IF path (input signal of the analog
to digital converter (ADC) is too high.
Reduce RF input level at the
port. Check amplifiers in the
external test setup.
4
LO unlocked
The internal local oscillator (LO) signal is phase
locked to a 10 MHz signal. This message appears
when the internal phase locked loop (PLL) fails.
Shut down and restart the
analyzer.
5
ExtRef
unlock
With external reference signal
(SETUP –
Reference Ext
active) or option FSL-B4 (oven
quartz), the reference oscillator is phase locked to
a 10 MHz signal. The message appears when this
phase locked loop (PLL) fails.
For external reference: check
frequency and level of the
supplied reference signal.
1
OCXO oven
cold
With option R&S FSL-B4, oven quartz: The oven
temperature is too low.
Wait until the oven has been
heated up
8
